Maypearl ISD's superintendent explained the steps the district has taken to solve high levels of carbon dioxide in classrooms, but parents remain concerned.

The claim: Antarctica hasn't warmed for over 70 years because humans have only contributed 40 ppm of CO2 to the atmosphere A Dec. 1 Instagram video (direct link, archive link) shows a headline ...

In March last year, the Securities and Exchange Commission issued its climate risk disclosure rule, called “The Enhancement ...

Her comment drew laughter from the spectators. The display turns green when the CO2 concentration is 1,000 parts per million (ppm) or less, because the figure indicates the air indoors is being ...

This record, from the NOAA-operated Mauna Loa Observatory, near the top of Mauna Loa on the island of Hawaii, shows that carbon dioxide has been increasing steadily from values around 315 parts per ...

VIZAG: A new study published in the journal Weather has revealed that the natural sequestration of carbon dioxide (CO2) by the Earth’s biosphere is declining, l ...

Industrial activities including the burning of fossil fuels, however, have increased atmospheric CO2 levels by nearly 50%, from 280 parts per million just over a century ago to about 417 ppm today.

Atmospheric concentrations of carbon dioxide have been steadily rising, from approximately 315 ppm (parts per million) in 1959 to a current atmospheric average of approximately 385 ppm (Keeling et al.