Learn about the largest active volcano on Earth Mauna Loa in Hawaii. Discover its massive size, eruption history, and ...

Earth’s carbon dioxide levels have reached a historic 430.2 ppm, the highest in millions of years, according to data from NOAA’s Mauna Loa Observatory and Scripps Institution. Scientists warn that ...

NASA's Mars Odyssey spacecraft has captured a breathtaking image. The image shows Arsia Mons, a massive Martian volcano. The ...

Volcano Watch is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory scientists ...

There’s now more carbon dioxide (CO2) in the atmosphere than ever before in human history, scientists have revealed. For the ...

Something big is peeking through Martian clouds. 🌋 The Odyssey orbiter captured a stunning view of Arsia Mons, a volcano ...

At the start of the Industrial Revolution, ice core samples show CO2 levels were around 280 parts per million but as they ...

New reports out of the NOAA and Scripps Institution of Oceanography suggest that the carbon dioxide (CO2) levels in Earth’s ...

Arsia Mons, the southernmost of the Tharsis Montes trio, stands at an awe-inspiring 20 kilometers high, dwarfing Earth’s ...

Atmospheric concentrations of carbon dioxide made history last month by climbing to their highest seasonal peak available in ...