Question

Total annual global carbon dioxide emissions have to be_____
less than
by 2050
​

Answer 1

Answer:

Atmospheric concentrations of carbon dioxide have reached 386 parts per million—and rising, because every year, human activity spews more than 30 billion metric tons of CO2.

Explanation:

Global CO2 emissions by source: Baseline, 1980-2050.global energy-related carbon-dioxide (CO2) emissions reached an all-time high of 30.6

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