Plants

The carbon trading market is heating up again, and a lot of people who have been figuring out ways to grab carbon dioxide out of the air are back in the game. California’s John Wick may well be at the head of the pack.

Al Ruozi, age 97, is a high-school dropout whose primary invention was a machine, largely forgotten by now, that can help farmers save water, improve soil quality, and fight climate change.

For years, a handful of enterprising grain farmers in the Midwest have been making huge strides–ecologically as well as financially–by managing to farm without plows and other invasive “tilling” machinery. Their achievements point to the possibility of a very different balance in global commodity trading markets.