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Volcano on the island of Hawaii in Hawaii, United States
Mars hosts the largest known volcano in the Solar System: Olympus Mons, a shield volcano about 21–22 km high and roughly 370–700 km across, covering some 300,000 km² — far larger than any terrestrial ...
Since 1950 atmospheric CO2 has risen , climbing from roughly 310 parts per million (ppm) in the early 1950s to about , marking an increase of roughly 37% and a level far above pre‑industrial values (a...
Measured atmospheric carbon dioxide has risen markedly over the past two decades: using a conservative, well-documented baseline of about 381 ppm in 2006 and the global-average values recorded in 2024...
Global fossil-fuel CO2 emissions are projected to hit a record high in 2025 at roughly 38.1 billion tonnes, a 1.1% rise driven by coal, gas and oil, while land‑use emissions have eased and at least 35...
The Keeling Curve measured at Mauna Loa has shown an unambiguous, accelerating rise in atmospheric CO₂ since systematic measurements began in 1958, with year‑to‑year increases small in the early decad...