Starter empress trees at a nursery in Montgomery, Ala. (Photographer: Chuck Hemard For Bloomberg Businessweek)
(Bloomberg Businessweek) -- To help battle global warming, companies around the world are expected to spend billions of dollars over the next decade building devices aimed at sucking carbon from the atmosphere. The thing is, Mother Nature already made one. While each acre of most tree species can capture and store 1.1 to 9.5 metric tons of carbon dioxide a year, an acre of empress trees can absorb 103. “The tree has a very Jack and t...