Oceans losing oxygen at unprecedented rate, experts warn

Oxygen in the oceans is being lost at an unprecedented rate as a result of the climate emergency and intensive farming. Sharks, tuna, marlin, and other large fish species are at particular risk, with many vital ecosystems in danger of collapse.

UN launches Madrid climate conference

UN Secretary-General Antonio Guterres has described as “utterly inadequate” efforts to stop climate change. He noted that the world has the scientific knowledge and technical means to limit global warming but political will is lacking.

Climate tipping points — too risky to bet against

Evidence is mounting that tipping points in the Earth system — such as the loss of the Amazon rainforest or the West Antarctic ice sheet — could be more likely than was thought, potentially committing the world to widespread, long-term irreversible changes.