Worst-case global warming scenarios not credible: study
Since industrialisation took off in the early 19th century, CO2 concentrations in the atmosphere have increased by nearly half, from 280 parts per million to 407 parts per million./ Earth's surface will almost certainly not warm up four or five degrees Celsius by 2100, according to a study released Wednesday which, if correct, voids worst-case UN climate change predictions. A revised calculation of how greenhouse gases drive up the planet's temperature reduces the range of possible end-of-century outcomes by more than half, researchers said ...
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