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less vegetationYale E360
•88% Informative
CO2-rich air fertilizes vegetation growth in even some of the driest places.
The negative impacts of hotter, drier climates have not gone away; but in most arid lands the CO2 fertilization effect is proving more powerful.
This supercharging of plant growth seems unlikely to be short-lived if fossil-fuel burning causes atmospheric.
Since 1982 there had been a 12 percent increase in photosynthesis, with CO2 fertilization again the primary cause.
The extra CO2 uptake by faster-growing plants is moderating the build-up of the gas in the atmosphere.
This global greening is seen most dramatically — and with greatest impact on ecosystems and the lives of people dependent on them — in drylands.
The Sahel region on the southern fringes of the Sahara Desert has benefitted from extra CO2 found in the atmosphere everywhere.
But the region has also seen the return of rains after the devastating droughts of the 1970s and 1980s .
In some places, farmers have changed the way they farm, nurturing the natural regeneration of trees in their fields to provide shade and nutrients for their crops.
Ecologists warn that the greening of ecosystems may be a sign of invasions by fast-growing alien plants better adapted to making the most of elevated CO2 levels.
VR Score
93
Informative language
94
Neutral language
59
Article tone
formal
Language
English
Language complexity
57
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Attention-grabbing headline
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Time-value
medium-lived
External references
11
Source diversity
8
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