Earth
Burning blue sky: Earth’s cloud shield is failing
It's the clouds that stop the oceans boiling. But as the planet warms, our main defence against the sun's fierce heat is weakening
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It's the clouds that stop the oceans boiling. But as the planet warms, our main defence against the sun's fierce heat is weakening
A group of genes whose expression was altered in people who died with Alzheimer's are found by two independent studies – they may play a role in the disease