Covering about 70% of the Earth’s surface, the world’s oceans are seen as an important marker of climate change, with rising sea temperatures and acidity today a cause of increasing concern.
Life on earth has been close to extinction at least five times in the last 500 million years, and in most cases, the secret to these catastrophic events lies in the oceans. How did the sea, which normally sustains life, become life-threatening at certain times? And why did some species survive? Continue reading “Decoding fossils to understand climate change”