Antarctic Ice Reveals Earth's Accelerating Plant Growth
Bassel Nasr
Air bubbles trapped in ancient ice show how plant growth has changed over centuries.
Tiny air bubbles trapped in Antarctic ice are a record of the atmosphere going back hundreds of years.
By measuring a gas that plants absorb, scientists found that global plant growth has increased sharply over the last century as carbon dioxide levels rose.
More growth sounds positive, but plants cannot absorb all the extra carbon. Cutting emissions remains essential.