Project Drawdown surveyed the most substantive, existing solutions to reduce carbon concentrations in the atmosphere. This impressive project, documented in an accessible, well-explained book, analyzed all available options on their overall potential for reducing carbon emissions or sequestering carbon by 2050. The table below lists the Drawdown solutions and indicates how many days Earth Overshoot Day would move if they were implemented. We include here Project Drawdown’s “plausible scenario,” but the Global Footprint Network research team studied more aggressive scenarios, too.
Solution | Sector | Total atmospheric CO2 reduction by 2050 - Plausible Scenario (gigatons of carbon dioxide equivalent) | Solution Moves Earth Overshoot Day This Many Days (2030 Scenario) |
Solution Moves Earth Overshoot Day This Many Days (2050 Scenario) |
---|---|---|---|---|
Refrigerant Management | Materials | 89.74 | 2.9 | 9.5 |
Wind Turbines (Onshore) | Energy | 84.6 | 2.7 | 8.9 |
Reduced Food Waste | Food | 70.53 | 2.3 | 7.4 |
Plant-Rich Diet | Food | 66.11 | 2.1 | 7 |
Tropical Forests | Land Use | 61.23 | 2 | 6.5 |
Educating Girls | Women & Girls | 59.6 | 1.9 | 6.3 |
Family Planning | Women & Girls | 59.6 | 1.9 | 6.3 |
Solar Farms | Energy | 36.9 | 1.2 | 3.9 |
Silvopasture | Food | 31.19 | 1 | 3.3 |
Rooftop Solar | Energy | 24.6 | 0.8 | 2.6 |
Regenerative Agriculture | Food | 23.15 | 0.7 | 2.4 |
Temperate Forests | Land Use | 22.61 | 0.7 | 2.4 |
Peatlands | Land Use | 21.57 | 0.7 | 2.3 |
Tropical Staple Trees | Food | 20.19 | 0.6 | 2.1 |
Afforestation | Land Use | 18.06 | 0.6 | 1.9 |
Conservation Agriculture | Food | 17.35 | 0.6 | 1.8 |
Tree Intercropping | Food | 17.2 | 0.5 | 1.8 |
Geothermal | Energy | 16.6 | 0.5 | 1.8 |
Managed Grazing | Food | 16.34 | 0.5 | 1.7 |
Nuclear | Energy | 16.09 | 0.5 | 1.7 |
Clean Cookstoves | Food | 15.81 | 0.5 | 1.7 |
Wind Turbines (Offshore) | Energy | 14.1 | 0.5 | 1.5 |
Farmland Restoration | Food | 14.08 | 0.5 | 1.5 |
Improved Rice Cultivation | Food | 11.34 | 0.4 | 1.2 |
Concentrated Solar | Energy | 10.9 | 0.3 | 1.2 |
Electric Vehicles | Transport | 10.8 | 0.3 | 1.1 |
District Heating | Buildings & Cities | 9.38 | 0.3 | 1 |
Multistrata Agroforestry | Food | 9.28 | 0.3 | 1 |
Wave and Tidal | Energy | 9.2 | 0.3 | 1 |
Methane Digesters (Large) | Energy | 8.4 | 0.3 | 0.9 |
Insulation | Buildings & Cities | 8.27 | 0.3 | 0.9 |
Ships | Transport | 7.87 | 0.3 | 0.8 |
LED Lighting (Household) | Buildings & Cities | 7.81 | 0.2 | 0.8 |
Biomass | Energy | 7.5 | 0.2 | 0.8 |
Bamboo | Land Use | 7.22 | 0.2 | 0.8 |
Alternative Cement | Materials | 6.69 | 0.2 | 0.7 |
Mass Transit | Transport | 6.57 | 0.2 | 0.7 |
Forest Protection | Land Use | 6.2 | 0.2 | 0.7 |
Indigenous Peoples' Land Management | Land Use | 6.19 | 0.2 | 0.7 |
Trucks | Transport | 6.18 | 0.2 | 0.7 |
Solar Water | Energy | 6.08 | 0.2 | 0.6 |
Heat Pumps | Buildings & Cities | 5.2 | 0.2 | 0.5 |
Airplanes | Transport | 5.05 | 0.2 | 0.5 |
LED Lighting (Commercial) | Buildings & Cities | 5.04 | 0.2 | 0.5 |
Building Automation | Buildings & Cities | 4.62 | 0.1 | 0.5 |
Water Saving - Home | Materials | 4.61 | 0.1 | 0.5 |
Bioplastic | Materials | 4.3 | 0.1 | 0.5 |
In-Stream Hydro | Energy | 4 | 0.1 | 0.4 |
Cars | Transport | 4 | 0.1 | 0.4 |
Cogeneration | Energy | 3.97 | 0.1 | 0.4 |
Perennial Biomass | Land Use | 3.33 | 0.1 | 0.4 |
Coastal Wetland | Land Use | 3.19 | 0.1 | 0.3 |
Rice Intensification | Food | 3.13 | 0.1 | 0.3 |
Walkable Cities | Buildings & Cities | 2.92 | 0.1 | 0.3 |
Household Recycling | Materials | 2.77 | 0.1 | 0.3 |
Industrial Recycling | Materials | 2.77 | 0.1 | 0.3 |
Smart Thermostats | Buildings & Cities | 2.62 | 0.1 | 0.3 |
Landfill Methane | Buildings & Cities | 2.5 | 0.1 | 0.3 |
Bike Infrastructure | Buildings & Cities | 2.31 | 0.1 | 0.2 |
Composting | Food | 2.28 | 0.1 | 0.2 |
Smart Glass | Buildings & Cities | 2.19 | 0.1 | 0.2 |
Women Smallholders | Women & Girls | 2.06 | 0.1 | 0.2 |
Telepresence | Transport | 1.99 | 0.1 | 0.2 |
Methane Digesters (Small) | Energy | 1.9 | 0.1 | 0.2 |
Nutrient Management | Food | 1.81 | 0.1 | 0.2 |
High-speed Rail | Transport | 1.52 | 0 | 0.2 |
Farmland Irrigation | Food | 1.33 | 0 | 0.1 |
Waste-to-Energy | Energy | 1.1 | 0 | 0.1 |
Electric Bikes | Transport | 0.96 | 0 | 0.1 |
Recycled Paper | Materials | 0.9 | 0 | 0.1 |
Water Distribution | Buildings & Cities | 0.87 | 0 | 0.1 |
Biochar | Food | 0.81 | 0 | 0.1 |
Green Roofs | Buildings & Cities | 0.77 | 0 | 0.1 |
Trains | Transport | 0.52 | 0 | 0.1 |
Ridesharing | Transport | 0.32 | 0 | 0 |
Micro Wind | Energy | 0.2 | 0 | 0 |
Total Days | 33.5 | 111 | ||
Total Months | 1.12 | 3.7 |