From heatwaves to wildfires, droughts and then flooding, this Summer has seen major weather disasters right around the world – all exacerbated by climate change. A new study has concluded that human emissions have already pushed the Earth over tipping points into danger zones. Passing these thresholds can lead to large, irreversible changes. Has climate change replaced poaching as the biggest threat to wildlife in Zimbabwe?Forgotten droughts: These five regions of the world could soon face conflict over waterWhat are climate ‘tipping points’?The research, carried out by scientists at the Unive…