Regenerative Agriculture Would Save 23.15 Gigatons of Carbon by 2050

Regenerative Agriculture places #11 on the Drawdown list of climate solutions, with the potential to cut atmospheric carbon dioxide by 23.15 gigatons. It carries an up-front cost of US$57.2 billion, but promises savings of $1.93 trillion, by 2050.

Autonomous Vehicle Use Could Hit 75% by 2040

Autonomous vehicles are included in Drawdown’s list of “coming attractions” as an up-and-coming climate solution that hasn’t yet become the norm.

Nutrient Management Would Save 1.81 Gigatons of Carbon by 2050

Nutrient management ranks #65 on Drawdown’s list of climate solutions, with potential to eliminate 1.81 gigatons of carbon dioxide and save a total of US$102.3 billion by 2050.

Cogeneration Would Save 3.97 Gigatons of Carbon by 2050

Cogeneration ranks #50 on Drawdown’s list of climate solutions, with the potential to eliminate 3.97 gigatons of carbon dioxide at a net cost of US$279.3 billion, while producing savings of $567 billion.

Recycled Paper Would Save 900 Megatons of Carbon by 2050

Recycled paper ranks #70 on Drawdown’s list of climate solutions. By 2050, recycled paper could eliminate 900,000 megatons of carbon dioxide emissions at an initial cost of US$573.5 billion, with eventual savings that are too indefinite to calculate.

Grid Flexibility Would Enable 80% Renewable Power Generation by 2050

Grid flexibility places #77 on Drawdown’s list of climate solutions as an essential tool for making 80% renewable generation “a global reality” by 2050. Its costs and savings are impossible to calculate, as they will be embedded in local renewable energy projects around the globe.

Utility-Scale Energy Storage Enables Distributed Renewables on the Grid

Critical to enabling a wholesale shift to variable sources of renewable power like solar and wind will be Utility-Scale Energy Storage which, alongside grid flexibility, places #77 on Drawdown’s list of climate solutions.

Perennial Bioenergy Crops Would Save 3.33 Gigatons of Carbon by 2050

Increased cultivation of perennial bioenergy crops ranks #51 on Drawdown’s list of climate solutions, with the potential to reduce atmospheric carbon dioxide by 3.33 gigatons by 2050 at a net cost of US$77.9 billion, but net savings of $542 billion.

Electrified Rail Would Save 500 Megatons of Carbon by 2050

Electrified rail places #74 on Drawdown’s list of climate solutions, with the potential to reduce atmospheric carbon dioxide by 500 megatons by 2050. While expanding rail lines around the world from 166,000 to 621,000 miles (267,150 to about one million kilometres) would cost US$809 billion, 30 years of use would see $314 billion saved, with a further $770 billion in savings over the life of the infrastructure.

In-Stream Hydro Would Save Four Gigatons of Carbon by 2050

In-stream hydro ranks #48 on Drawdown’s list of climate solutions, with the potential to reduce atmospheric carbon dioxide by 4.0 gigatons by 2050, at a net cost of US$202.5 billion but with net savings of $568.4 billion.

Food Waste Composting Would Save 2.28 Gigatons of Carbon by 2050

Normalizing and intensifying the composting of food waste ranks #60 on Drawdown’s list of climate solutions, with the potential to reduce atmospheric carbon by 2.28 gigatons by 2050.

Bioplastics Would Save 4.3 Gigatons of Carbon by 2050

Ramping up production of bioplastics ranks #47 on Drawdown’s list of climate solutions, with potential to reduce atmospheric carbon dioxide by 4.3 gigatons by 2050. First costs to capture 50% of the plastics market within 30 years would peak at US$19.2 billion.

Coastal Wetland Protection Would Save 3.3 Gigatons of Carbon by 2050

Protection of Coastal Wetlands ranks #52 on Drawdown’s list of climate solutions. The strategy could reduce atmospheric carbon dioxide by 3.3 gigatons by 2050, as long as 75 million acres of these vital ecosystems (out of a total of 121 million world-wide) can be secured within the next 30 years.

Biochar Would Save 810 Megatons of Carbon by 2050

Accelerating the production of biochar ranks #72 on Drawdown’s list of climate solutions, with the potential to reduce atmospheric carbon by 810 megatons by 2050.

Solar Water Heating Would Save 6.08 Gigatons of Carbon by 2050

Solar water heating ranks #41 on Drawdown’s list of climate solutions. It could eliminate 6.08 gigatons of carbon dioxide by 2050 at a net cost of US$3 billion, resulting in net savings of $773.7 million.

Shipping Efficiency Would Save 7.9 Gigatons of Carbon by 2050

Increasing transport ship efficiency places #32 on Drawdown’s list of climate solutions. Efficiency gains of 50% across the sector, at a net cost of US$915.9 billion, could prevent 7.9 gigatons of CO2 emissions by 2050, while saving the international marine industry US$1 trillion in fuel costs over the life of the vessels.

Bike Infrastructure Would Save 2.31 Gigatons of Carbon by 2050

Bike infrastructure ranks #59 on Drawdown’s list of climate solutions. Better and more widespread bike infrastructure would eliminate 2.31 gigatons of carbon dioxide and produce net savings of US$400.5 billion, with further lifetime savings of $2.1 trillion.

Micro Wind Would Save 200 Megatons of Carbon by 2050

Micro wind places #76 on Drawdown’s list of climate solutions. If its share of global electricity generation increases to 1%, it could eliminate 0.2 gigatons of carbon dioxide at a cost of $US36.1 billion, against savings of $19.9 billion.

Ridesharing Would Save 320 Megatons of Carbon by 2050

Ridesharing ranks #75 on the Drawdown list of climate solutions. It could cut atmospheric carbon dioxide by 0.32 gigatons at no cost, resulting in net savings of US$185.6 billion. That calculation is exclusive to commuters in Canada and the United States, and assumes ridesharing will rise to 15% of car commuters by 2050.

Alternative Cement Would Save 6.69 Gigatons of Carbon by 2050

Alternative cement places #36 on Drawdown’s list of climate solutions, with the potential to avoid 6.69 gigatons of atmospheric carbon dioxide by 2050. The shift would save US$174 billion, because such alternatives ultimately last longer.

Green Roofs Would Save 770 Megatons of Carbon by 2050

Green roofs rank #73 on Drawdown’s list of climate solutions. By the year 2050, an increase in green and cool roofs could save 0.77 gigatons of carbon at a net cost of US$1.39 trillion, while producing $988.5 billion in savings.

Living Buildings Would Revitalize the Environment, Build Community

Living buildings is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Electric Bikes Would Save 960 Megatonnes of Carbon by 2050

Electric bikes place #69 on Drawdown’s list of climate solutions. They can eliminate 0.96 gigatons of carbon dioxide emissions by 2050 at a cost of $US106.8 billion, with net savings of $226.1 billion.

Smart Glass Would Save 2.19 Gigatons of Carbon by 2050

Smart glass ranks #61 on Drawdown’s list of climate solutions. By 2050, smart glass can eliminate 2.19 gigatons of carbon dioxide at a net cost of $US74.2 billion, and would result in $321.5 billion in savings.

Insulation Would Save 8.27 Gigatons of Carbon by 2050

Insulation places #31 on the Drawdown list of climate solutions, with the potential to cut atmospheric carbon dioxide by 8.27 gigatons by 2050. The option carries an upfront cost of US$3.66 trillion, $2.5 trillion of which would be recouped within 30 years.

Home Water Efficiency Would Save 4.61 Gigatons of Carbon by 2050

Water saving in the home places #46 on Drawdown’s list of climate solutions. It can eliminate 4.61 gigatons of carbon dioxide emissions by 2050 at a net cost of $US72.44 billion, producing net savings of $1.8 trillion, based solely on energy savings from more efficient use of hot water.

Biomass for Electricity Would Save 7.5 Gigatons of Carbon by 2050…But Perils Await

Burning biomass to produce electricity places #34 on Drawdown’s list of climate solutions. It could avoid 7.5 gigatons of atmospheric carbon dioxide by 2050 at a net cost of US$402.3 billion, with net savings of $519.4 billion.

Silvopasture Would Save 31.9 Gigatons of Carbon by 2050

Silvopasture ranks #9 on Drawdown’s list of climate solutions. By 2050, the technique could eliminate 31.9 gigatons of carbon dioxide at a net cost of US$41.6 billion, leading to $699.4 billion in net savings.

Pasture Cropping Restores Depleted Soils, Improves Wood Yields

Pasture Cropping, where annual crops are cyclically planted in perennial pastures, is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Forest Protection Would Save 6.2 Gigatons of Carbon by 2050

Forest protection places #38 on Drawdown’s list of climate solutions, with the potential to avoid 6.2 gigatons of carbon dioxide emissions by 2050 and sequester an astonishing 896.29 gigatons.

Microbial Farming Would Mobilize the ‘Intricate Ecosystems’ Beneath Our Feet

Microbial farming, which involves reseeding exhausted farmland with the diverse microbiome upon which productive soil depends, is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Marine Permaculture Could ‘Reforest’ the Oceans, Draw 102 Gigatons of CO2 by 2050

Marine permaculture technology that seeds the world’s oceans with kelp forests while pumping up colder, nutrient-rich waters from the ocean depths is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Mass Transit Would Save 6.57 Gigatons of Carbon by 2050

Expanding use of mass transit ranks #37 on Drawdown’s list of climate solutions, with the potential to eliminate 6.57 gigatons of carbon dioxide and produce US$2.38 trillion in savings. The cost, according to Drawdown, is too variable to be determined.

Building Automation Would Save 4.62 Gigatons of Carbon by 2050

Building automation ranks #45 on Drawdown’s list of climate solutions. It could eliminate up to 4.62 gigatons of carbon dioxide by 2050 at a cost of US$68.1 billion, eventually saving building owners around $880.6 billion.

Concentrated Solar Power Would Save 10.9 Gigatons of Carbon by 2050

Concentrated Solar Power (CSP) places #25 on Drawdown’s list of climate solutions. Scaling up CSP to 4.3% of global electricity production by 2050 would avoid 10.9 gigatons of carbon dioxide. While implementation costs of CSP are high, at US$1.3 trillion, net savings by 2050 could total $414 billion, with lifetime savings of $1.2 trillion.

Efficient Water Distribution Would Save 870 Megatons of Carbon by 2050

More efficient water distribution places #71 on the Drawdown list of climate solutions. It could cut atmospheric carbon dioxide by 870 megatons by 2050 at a cost of US$137.4 billion, producing net savings of $903.1 billion.

Tropical Staple Trees Would Save 20.19 Gigatons of Carbon by 2050

Tropical staple trees rank #14 on Drawdown’s list of climate solutions. This option could eliminate 20.19 gigatons of atmospheric carbon dioxide at a cost of $US120.1 billion, producing savings of $627 billion.

Farmland Restoration Would Save 14.08 Gigatons of Carbon by 2050

Farmland Restoration places #23 on Drawdown’s list of climate solutions. Restoring 424 million acres of abandoned farmland to rich agricultural life by 2050 would, after a total investment of $72 billion, sequester 14.08 gigatons of carbon dioxide while providing a financial return of $1.3 trillion—and an additional 9.5 billion tonnes of food.

Intensive Silvopasture Could Cut Methane Emissions, Boost Carbon Sequestration in Animal Agriculture

Intensive silvopasture is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Fuel-Efficient Trucks Would Save 6.2 Gigatons of Carbon by 2050

Increasing fuel efficiency in the global freight trucking industry places #40 on Drawdown’s list of climate solutions. It could reduce atmospheric emissions of carbon dioxide by 6.2 gigatons by 2050, at a net cost of US$543.5 billion, but $2.78 trillion in net savings.

Perennial Food Crops Could Boost Soil Carbon and Food Security, Reduce Deforestation

Replacing soil-depleting annual food species with perennial crops is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Household Recycling Would Save 2.77 Gigatons of Carbon by 2050

Household recycling ranks #55 on Drawdown’s list of climate solutions. It could eliminate 2.77 gigatons of carbon dioxide emissions at a net cost of US$366.9 billion, while producing net savings of $71.1 billion.

Replacing Cotton with Industrial Hemp Could Reduce Demand for World’s ‘Dirtiest Crop’

Substantially replacing cotton with industrial hemp is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Aircraft Fuel Efficiency Would Save 5.05 Gigatons of Carbon by 2050

Improving aircraft fuel efficiency ranks #43 on the Drawdown list of climate solutions, with the potential to reduce atmospheric carbon dioxide by 5.05 gigatons by 2050. The shift would cost US$662.4 billion, but produce net savings of $3.19 trillion.

Building with Wood Could Sequester Carbon, Produce Fewer Emissions Than Concrete

Building with wood is making a comeback, and is included in Drawdown’s list of “coming attractions” as a decarbonization option that hasn’t yet hit the mainstream, but could be a part of a wider set of post-carbon solutions by 2050.

Smart Highways Would Turn Roads Into a ‘Positive Social, Environmental Force’

A shift to smart highways is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Intensive Silvopasture Could Cut Methane Emissions, Boost Carbon Sequestration in Animal Agriculture

Intensive silvopasture is one of the 20 carbon reduction options that Drawdown lists as Coming Attractions—strategies that weren’t ready for prime time when the book was published, but looked like promising approaches through mid-century.

Geothermal Would Save 16.6 Gigatons of Carbon by 2050

Geothermal places #18 on the Drawdown list of climate solutions. If it could increase its share of global electricity generation from 0.66 to 4.9% by 2050, geothermal would prevent 16.6 gigatons of CO2 emissions, at a net cost of $US155.5 billion but net savings of $US 1.02 trillion.

Landfill Methane Would Save 2.5 Gigatons of Emissions by 2050

Producing energy from landfill methane ranks #58 on Drawdown’s list of climate solutions, with the potential to reduce atmospheric emissions by the equivalent of 2.5 gigatons of carbon dioxide by 2050, at a net cost of -US$1.8 billion and net savings of $67.6 billion.

Telepresence Would Save 1.99 Gigatons of Carbon by 2050

Telepresence ranks #63 on Drawdown’s list of climate solutions. It could cut atmospheric carbon dioxide by 1.99 gigatons by 2050 at a cost of $US127.7 billion, creating a net savings of $1.31 trillion.

Indigenous Peoples’ Land Management Would Save 6.19 Megatons of Emissions, Sequester 849.4 Gigatons of Carbon, by 2050

Indigenous Peoples’ Land Management ranks #39 on Drawdown’s list of climate solutions. It can reduce atmospheric carbon dioxide by 6.19 gigatons and sequester 849.37 gigatons of carbon by 2050.

Wave and Tidal Power Would Save 9.2 Gigatons of Carbon by 2050

Wave and tidal power ranks #29 on Drawdown’s list of climate solutions. By 2050, this alternative energy source could eliminate 9.2 gigatons of atmospheric carbon dioxide at a cost of US$412 billion. Drawdown calculates that the installations would produce a net financial loss of $1 trillion over three decades, but the investment would result in substantial emission reductions over that time.

Temperate Forest Restoration Would Save 22.61 Gigatons of Carbon by 2050

Temperate forest restoration places #12 on Drawdown’s list of climate solutions. The research team estimates that by 2050, temperate forests will naturally grow by 235 million acres and could sequester 22.61 gigatons of carbon dioxide emissions.

Bamboo Would Save At Least 7.22 Gigatons of Carbon by 2050

Increased cultivation and use of Bamboo places #35 on the Drawdown list of climate solutions, with potential to cut atmospheric carbon dioxide by 7.22 gigatons of carbon dioxide. It would cost US$23.8 billion, but savings of $264.8 billion by 2050.

Family Planning Would Save 59.6 Gigatons of Carbon by 2050

Family Planning places #7 in Drawdown’s list of climate solutions. It could reduce atmospheric carbon dioxide by 59.6 gigatons by 2050—and without it, a billion more people could be added to the world’s population.

District Heating Would Save 9.38 Gigatons of Carbon by 2050

District heating ranks #27 on Drawdown’s list of climate solutions. By 2050, the technique could eliminate 9.38 gigatons of carbon dioxide at a net cost of US$457.1 billion, and produce $3.54 trillion in savings.

Smart Thermostats Would Save 2.6 Gigatons of Carbon by 2050

Smart thermostats place #57 on the Drawdown list of climate solutions. By 2050, this technology could reduce atmospheric carbon dioxide by 2.6 gigatons at a cost of US$74.2 billion and produce net savings of $640.1 billion in utility bills.

Walkable Cities Would Save 2.92 Gigatons of Carbon by 2050

Walkable Cities place #54 on the Drawdown list of climate solutions. The strategy could cut atmospheric carbon dioxide by 2.92 gigatons by 2050 and produce an astounding US$3.28 trillion in net operational savings, though the corresponding costs are too variable to measure.

Plant-Rich Diet Would Save 66.11 Gigatons of Carbon by 2050

A plant-rich diet places #4 on the Drawdown list of climate solutions. While data vary too widely for a comprehensive global accounting, Drawdown sees a global shift away from the “meat-centric, highly processed, often excessive Western diet” cutting atmospheric carbon dioxide by 66.11 gigatons by 2050, saving trillions of dollars in health care costs, and boosting global GDP by as much as 13%.

Conservation Agriculture Would Save 17.35 Gigatons of Carbon by 2050

Conservation Agriculture ranks #16 on the Drawdown list of climate solutions. It would keep 17.35 gigatons of CO2 from entering the atmosphere by 2050 at a net implementation cost of US$37.5 billion, and bring US$2.12 trillion net savings.

Supporting Women Smallholders Would Save 2.06 Gigatons of Carbon by 2050

Supporting women smallholders ranks #62 on Drawdown’s list of climate solutions. It would reduce 2.06 gigatons of atmospheric carbon dioxide by 2050 and produce $US87.6 billion in net savings.

Tree Intercropping Would Save 17.2 Gigatons of Carbon by 2050

Tree Intercropping places #17 on Drawdown’s list of climate solutions. Intercropping on 571 million acres globally by 2050 would sequester 17.2 gigatons of carbon dioxide and, after a total investment of US$147 billion, save $22.1 billion over the 30-year span.

Smart Grid Technology Would Enable ‘Variable’ Renewables, Save 0.7 to 2.1 Gigatons of Carbon Dioxide by 2050

Smart grid development is a low-carbon solution that Drawdown lists as a “coming attraction” that can help utilities accommodate the rise of renewable energy. It could also eliminate 0.7 to 2.1 gigatons of carbon dioxide by 2050.

Educating Girls Would Save 59.6 Gigatons of Carbon by 2050

Educating girls ranks #6 on Drawdown’s list of climate solutions. By 2050, if universal education is achieved in low- and lower-middle-income countries, educating girls can eliminate 59.6 gigatons of carbon dioxide, with costs and savings that are both incalculable.

Solar Farms Would Save 36.9 Gigatons of Carbon by 2050

Solar farms rank #8 on Drawdown’s list of climate solutions, with the potential to eliminate 36.9 gigatons of carbon dioxide and produce net savings of US$5 trillion by 2050. On top of that the implementation costs of solar farms could deliver $81 billion in additional savings compared to fossil plants.

Peatlands Restoration Would Save 21.57 Gigatons of Carbon by 2050

Peatlands restoration is ranked #13 on Drawdown’s list of climate solutions. It can avoid 21.57 gigatons of carbon dioxide emissions by 2050. While data are too variable to permit a global accounting of costs, those hundreds of millions of acres of protected lands will permanently secure 1,200 gigatons of carbon dioxide from being released into the atmosphere.

Tropical Forest Restoration Would Save 61.23 Gigatons of Carbon by 2050

Restoration of Tropical Forests places #5 on the Drawdown list of climate solutions, with potential to cut atmospheric carbon dioxide by 61.23 gigatons by 2050.

Solid State Wave Energy Systems Have No Moving Parts, But Many Specialized Requirements

Solid state wave energy is one of 20 carbon reduction options in Drawdown’s list of “coming attractions” that hold major future promise, but aren’t quite ready for prime time. The technology has incredible potential, but faces barriers to becoming a current, mainstream solution.

Refrigerant Management Would Save 89.7 Gigatons of Carbon Equivalent by 2050

Refrigerant management places #1 on the Drawdown list of climate solutions, with potential to prevent the equivalent of 89.7 gigatons of carbon dioxide from entering the atmosphere by 2050.

Multi-Strata Agroforestry Would Save 9.28 Gigatons of Carbon by 2050

Multistrata Agroforestry places #28 on the Drawdown list of climate solutions, with the potential to cut atmospheric carbon dioxide by 9.28 gigatons by 2050, with an up-front cost of $26.8 billion but net savings of $709.8 billion.

Reducing Food Waste Would Save 70.53 Gigatons of Carbon by 2050

Reduced food waste places #3 on the Drawdown list of climate solutions. Reducing global food waste by 50% could decrease carbon emissions by a total of 70.53 gigatons by 2050, including emissions that would be cut by preventing deforestation for farmland.

Landfill Methane Would Save 2.5 Gigatons of Emissions by 2050

Producing energy from landfill methane ranks #58 on Drawdown’s list of climate solutions, with the potential to reduce atmospheric emissions by the equivalent of 2.5 gigatons of carbon dioxide by 2050, at a net cost of -US$1.8 billion and net savings of $67.6 billion.

Forest Protection Would Save 6.2 Gigatons of Carbon by 2050

Forest protection places #38 on Drawdown’s list of climate solutions, with the potential to avoid 6.2 gigatons of carbon dioxide emissions by 2050 and sequester an astonishing 896.29 gigatons.

Concentrated Solar Power Would Save 10.9 Gigatons of Carbon by 2050

Concentrated Solar Power (CSP) places #25 on Drawdown’s list of climate solutions. Scaling up CSP to 4.3% of global electricity production by 2050 would avoid 10.9 gigatons of carbon dioxide. While implementation costs of CSP are high, at US$1.3 trillion, net savings by 2050 could total $414 billion, with lifetime savings of $1.2 trillion.

Indigenous Peoples’ Land Management Would Save 6.19 Megatons of Emissions, Sequester 849.4 Gigatons of Carbon, by 2050

Indigenous Peoples’ Land Management ranks #39 on Drawdown’s list of climate solutions. It can reduce atmospheric carbon dioxide by 6.19 gigatons and sequester 849.37 gigatons of carbon by 2050.

Building Automation Would Save 4.62 Gigatons of Carbon by 2050

Building automation ranks #45 on Drawdown’s list of climate solutions. It could eliminate up to 4.62 gigatons of carbon dioxide by 2050 at a cost of US$68.1 billion, eventually saving building owners around $880.6 billion.

District Heating Would Save 9.38 Gigatons of Carbon by 2050

District heating ranks #27 on Drawdown’s list of climate solutions. By 2050, the technique could eliminate 9.38 gigatons of carbon dioxide at a net cost of US$457.1 billion, and produce $3.54 trillion in savings.

Geothermal Would Save 16.6 Gigatons of Carbon by 2050

Geothermal places #18 on the Drawdown list of climate solutions. If it could increase its share of global electricity generation from 0.66 to 4.9% by 2050, geothermal would prevent 16.6 gigatons of CO2 emissions, at a net cost of $US155.5 billion but net savings of $US 1.02 trillion.

Conservation Agriculture Would Save 17.35 Gigatons of Carbon by 2050

Conservation Agriculture ranks #16 on the Drawdown list of climate solutions. It would keep 17.35 gigatons of CO2 from entering the atmosphere by 2050 at a net implementation cost of US$37.5 billion, and bring US$2.12 trillion net savings.

Tropical Staple Trees Would Save 20.19 Gigatons of Carbon by 2050

Tropical staple trees rank #14 on Drawdown’s list of climate solutions. This option could eliminate 20.19 gigatons of atmospheric carbon dioxide at a cost of $US120.1 billion, producing savings of $627 billion.

Wave and Tidal Power Would Save 9.2 Gigatons of Carbon by 2050

Wave and tidal power ranks #29 on Drawdown’s list of climate solutions. By 2050, this alternative energy source could eliminate 9.2 gigatons of atmospheric carbon dioxide at a cost of US$412 billion. Drawdown calculates that the installations would produce a net financial loss of $1 trillion over three decades, but the investment would result in substantial emission reductions over that time.

Tree Intercropping Would Save 17.2 Gigatons of Carbon by 2050

Tree Intercropping places #17 on Drawdown’s list of climate solutions. Intercropping on 571 million acres globally by 2050 would sequester 17.2 gigatons of carbon dioxide and, after a total investment of US$147 billion, save $22.1 billion over the 30-year span.

Temperate Forest Restoration Would Save 22.61 Gigatons of Carbon by 2050

Temperate forest restoration places #12 on Drawdown’s list of climate solutions. The research team estimates that by 2050, temperate forests will naturally grow by 235 million acres and could sequester 22.61 gigatons of carbon dioxide emissions.

Supporting Women Smallholders Would Save 2.06 Gigatons of Carbon by 2050

Supporting women smallholders ranks #62 on Drawdown’s list of climate solutions. It would reduce 2.06 gigatons of atmospheric carbon dioxide by 2050 and produce $US87.6 billion in net savings.

Efficient Water Distribution Would Save 870 Megatons of Carbon by 2050

More efficient water distribution places #71 on the Drawdown list of climate solutions. It could cut atmospheric carbon dioxide by 870 megatons by 2050 at a cost of US$137.4 billion, producing net savings of $903.1 billion.

Plant-Rich Diet Would Save 66.11 Gigatons of Carbon by 2050

A plant-rich diet places #4 on the Drawdown list of climate solutions. While data vary too widely for a comprehensive global accounting, Drawdown sees a global shift away from the “meat-centric, highly processed, often excessive Western diet” cutting atmospheric carbon dioxide by 66.11 gigatons by 2050, saving trillions of dollars in health care costs, and boosting global GDP by as much as 13%.

Telepresence Would Save 1.99 Gigatons of Carbon by 2050

Telepresence ranks #63 on Drawdown’s list of climate solutions. It could cut atmospheric carbon dioxide by 1.99 gigatons by 2050 at a cost of $US127.7 billion, creating a net savings of $1.31 trillion.

Bamboo Would Save At Least 7.22 Gigatons of Carbon by 2050

Increased cultivation and use of Bamboo places #35 on the Drawdown list of climate solutions, with potential to cut atmospheric carbon dioxide by 7.22 gigatons of carbon dioxide. It would cost US$23.8 billion, but savings of $264.8 billion by 2050.

Tropical Forest Restoration Would Save 61.23 Gigatons of Carbon by 2050

Restoration of Tropical Forests places #5 on the Drawdown list of climate solutions, with potential to cut atmospheric carbon dioxide by 61.23 gigatons by 2050.

Walkable Cities Would Save 2.92 Gigatons of Carbon by 2050

Walkable Cities place #54 on the Drawdown list of climate solutions. The strategy could cut atmospheric carbon dioxide by 2.92 gigatons by 2050 and produce an astounding US$3.28 trillion in net operational savings, though the corresponding costs are too variable to measure.

Family Planning Would Save 59.6 Gigatons of Carbon by 2050

Family Planning places #7 in Drawdown’s list of climate solutions. It could reduce atmospheric carbon dioxide by 59.6 gigatons by 2050—and without it, a billion more people could be added to the world’s population.

Reducing Food Waste Would Save 70.53 Gigatons of Carbon by 2050

Reduced food waste places #3 on the Drawdown list of climate solutions. Reducing global food waste by 50% could decrease carbon emissions by a total of 70.53 gigatons by 2050, including emissions that would be cut by preventing deforestation for farmland.