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The Solutions We Have and the Breakthroughs We Need
by Bill Gates, 2021
Everything you need to know about climate change and what to do about it. We add 51 billion tons of carbon dioxide into the earth’s atmosphere every year. We need to reduce that to 0 or there will be floods, famines, droughts, massive storms, wildfires, no coral reefs. We need to reduce our emissions to 0 by 2050. We need to convert everything possible (industry, transportation, heating and cooling) to run on electricity, but it needs to be clean electricity, and only nuclear can provide the 24/7 clean energy in the amounts we need. The 3rd world countries need to be able to modernize in everything they do, and we need to allow them to do so and help them to do so without increasing carbon emissions.
There are so many solutions out there (from page 200): next-generation nuclear fission, Nuclear fusion, low-emission fuels (Electrofuels and advanced biofuels), zero-carbon cement and steel and fertilizer, plant and cell-based meat and dairy, zero-carbon plastics, geothermal energy, thermal storage, grid-scale electricity storage that can last a full season, hydrogen produced without emitting carbon, zero-carbon alternatives to palm oil, Coolants that don’t contain F-gases, pumped hydro, thermal storage, underground electricity transmission, carbon capture (both direct air capture and point capture).
The main things people can do involve getting involved politically; telling our representatives what we want, and not just saying “do something about climate change.” Tell them policies that need to be updated, incentives that need to be in place, tax money that needs to be spent, etc. Research and Development are key items and government can invest in R&D for the long haul.
If we don’t do anything and we get to a tipping point, then geoengineering may need to happen: “distributing extremely fine particles–each just a few millionths of an inch in diameter–in the upper layers of the atmosphere…Another approach to geoengineering involves brightening clouds. Because sunlight is scattered by the tops of clouds, we could scatter more sunlight and cool the earth by making the clouds brighter, using a salt spray that causes clouds to scatter more light.”