But it's been millions of years since carbon in the atmosphere last warmed the planet to this extent.
NASA once had 400,000 people working on space exploration. We should battle climate change in the same way.
We're in a new geological era, say scientists.
Their flimsy chances rely on the eggs and sperm from the remaining three elderly animals, combined with frozen DNA from dead rhino.
COP21 ended with an agreement that is at once both historic, important – and inadequate
The continent's ice caps are melting, and both native and alien species will soon colonise the newly uncovered areas.
Imagine building a dam across the Strait of Gibraltar and draining the Mediterranean in order to generate vast amounts of hydroelectricity and create fertile new lands.