Between 2000 and 2017, levels of the potent greenhouse gas methane barrelled up toward amounts that could lead to 3-4°C of warming before the end of this century, researchers at Stanford University have found.
In richer countries around the world, people are grappling with the ethics of bringing children into a crowded and overheated planet. But is a reduction in birth rates the best way to beat climate change? The argument rages on.
