Global warming is changing soil chemistry, to the detriment of plant growth in the world’s dry regions

Summit County: After studying soil samples at more than 200 sites worldwide in a networked research projects, scientists say global warming is likely to change the balance of soil nutrients in drylands -- to the detriment of plant growth. Drylands cover about 41 percent of the earth’s surface. The study suggests that people -- about 20 percent of the world`s population -- who depend on those ecosystems for crops, livestock forage, fuel and fiber will find their resources increasingly restrained. The findings......

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