Harry is a U.K.-based staff writer at Live Science. He studied Marine Biology at the University of Exeter (Penryn campus) and after graduating started his own blog site 'Marine Madness,' which he continues to run with other ocean enthusiasts. He is also interested in evolution, climate change, robots, space exploration, environmental conservation and anything that's been fossilized. When not at work he can be found watching sci-fi films, playing old Pokemon games or running (probably slower than he'd like).
Climate tipping points — the"points of no return" past which key components of Earth's climate will begin to irreversibly break down — could be triggered by much lower temperatures than scientists previously thought, with some tipping points potentially already reached. There are also many more potential tipping points than scientists previously identified, according to a new study.
Earth has already warmed by more than 2 degrees F above preindustrial levels and, if current warming trends continue, is on track to reach between 3.6 and 5.4 F above preindustrial levels, the study authors said in a statement. In the new study, the researchers calculated the exact temperature at which each tipping element would be likely to pass its point of no return. Their analysis revealed that five tipping elements — the Greenland and West Antarctic ice sheets; Arctic permafrost; tropical coral reefs; and a key ocean current in the Labrador Sea — are in the"danger zone," meaning they are quickly approaching their tipping points.
"To maintain liveable conditions on Earth, protect people from rising extremes, and enable stable societies, we must do everything possible to prevent crossing tipping points," Rockström said."Every tenth of a degree counts."
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