Three in four say climate 'tipping points' close

Some 73 percent of people now believe that Earth's climate is approaching abrupt and irreversible "tipping points" due to human activity, according to a global opinion poll released Tuesday.

Global silicate weathering carbon sink has huge potential

The silicate carbon weathering sink (SCS) is the net carbon sink that affects the global carbon cycle over a period of millions of years or more. However, the magnitude, spatial pattern and evolution characteristics of global ...

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