Heat-trapping carbon dioxide levels in air hit another high

This article discusses the steady increase in Greenhouse Gases (GHGs) i the atmosphere. It is causing global warming.

The amount of heat-trapping carbon dioxide in the air peaked again this year at record levels, scientists reported Thursday.

The National Oceanic and Atmospheric Administration said Thursday that carbon dioxide levels averaged 411.25 parts per million in May at the federal Mauna Loa observatory in Hawaii, up from 409.65 a year ago.

The Scripps Institution for Oceanography, where scientists first started tracking the gas, found a similar increase.

May is traditionally the highest month for carbon dioxide levels; in late spring and summer, plants suck the heat-trapping gas out of the air.

The amount of carbon dioxide in the air has increased nearly 26 percent in 50 years. Burning coal, gas and oil emits carbon dioxide, which is a major greenhouse gas.

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