The amount of heat-trapping carbon dioxide in the atmosphere has shot past a key milestone — more than 50% higher than pre-industrial times — and is at levels not seen since millions of years ago when ...

Li Cohen is a senior social media producer at CBS News. She previously wrote for amNewYork and The Seminole Tribune. She mainly covers climate, environmental and weather news. "Over the past year, ...

Surging emissions from wildfires may have been behind the increase, which was the largest since modern measurements began more than half a century ago. By Raymond Zhong and Sachi Kitajima Mulkey The ...

Greenhouse gas concentrations increased by a record amount in 2024 as more carbon dioxide, methane and nitrous oxide became locked in Earth's atmosphere, a World Meteorological Organization report ...

Carbon dioxide levels measured on Mauna Loa in Hawaii set a new record of 424 parts per million in May, continuing the steady climb in greenhouse gas concentration in the atmosphere, the Scripps ...

Scientists measured a carbon dioxide concentration of 420.99 parts per million, an increase of 1.8 ppm over 2021. Jacek Kadaj via Getty Images The amount of carbon dioxide (CO2) in the atmosphere has ...

Carbon dioxide measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked for 2022 at 421 parts per million in May, pushing the atmosphere further into territory not seen for millions of ...

The atmospheric concentration of methane — a greenhouse gas that contributes significantly to global warming — increased by a record amount in 2021 for the second year in a row, the National Oceanic ...

Issy Borley receives funding from the Australian Bureau of Meteorology. Cathy Trudinger does not work for, consult, own shares in or receive funding from any company or organisation that would benefit ...

Humans pumped 36 billion tons of the planet-warming gas into the atmosphere in 2021, more than in any previous year. It comes from burning oil, gas and coal. By Henry Fountain The amount of ...

Carbon dioxide levels rose to a peak of 421 parts per million in May, according to federal scientists. At the start of the industrial revolution, carbon dioxide levels were around 280 ppm. A growing ...

NEW YORK (Reuters Health) - People who suffer from the nighttime breathing disorder known as sleep apnea may develop high levels of carbon dioxide in the blood during the daytime -- a condition known ...