Concerned about climate change then Build Soil!
"Improving soil" doesn't have quite the same ring as, say, pumping sulphur into the air to block out the sun. Yet soil is known to be highly effective at storing carbon, because the Earth has been doing it for millions of years. Just the first meter of soil contains 1,500 gigatons of organic carbon, or three times as much carbon as there is in the atmosphere. If we could restore more carbon to the world's soil—it's lost 50% to 70% of its carbon content since we started land cultivation—we could put a huge dent in the climate change problem, say researchers and campaigners."