CO2 can stimulate plant growth, but only when enough nitrogen is available—and that key ingredient has been seriously miscalculated. A new study finds that natural nitrogen fixation has been overestimated by about 50 percent in major climate models. This means the climate-cooling benefits of plant growth under high CO2 are smaller than expected. The result: a reduced buffer against climate change and more uncertainty in future projections.
We need many more plants then! We visited South India (Kerala) a few years ago. One city had local political and economic and educational policies for everyone growing plants and trees where and when they can. Posters everywhere extolling the CO2 capture, oxygen production and dust trapping. Wish we had the same here in the West.