Add Yahoo as a preferred source to see more of our stories on Google. An observatory high on Hawaii's Mauna Loa volcano that measures carbon dioxide in the atmosphere has reported its highest ever ...

Carbon dioxide is accumulating in the atmosphere faster than ever — accelerating on a steep rise to levels far above any experienced during human existence, scientists from NOAA and Scripps ...

The longer you hold your breath, the more a desperate pressure in your chest grows — this is what scientists call “air hunger.” This panicked, suffocating feeling acts as a fundamental mammalian ...

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, ...

Carbon dioxide is accumulating in the atmosphere faster than ever — accelerating on a steep rise to levels far above any experienced during human existence, scientists from NOAA and Scripps ...

As humans burn fossil fuels and pump carbon dioxide into the atmosphere, we are heating up the planet. But there is another alarming impact of this climate pollution: it may be changing the chemistry ...

While it is widely known that rising carbon dioxide emissions have significantly impacted the climate and our ecosystems, scientists recently found a less expected outcome. Increased CO2 levels have ...

Carbon dioxide levels in Earth's atmosphere are at their highest point in human history, a study released in early December reports. In fact, according to the study, it has been about 14 million years ...

The last time carbon dioxide in the atmosphere consistently matched today's human-driven levels was 14 million years ago, according to a large new study Thursday that paints a grim picture of where ...