Even if global temperatures begin to decline after peaking this century because of climate change, the risks to biodiversity could persist for decades after, finds a new study by UCL and University of Cape Town researchers.
Even if global temperatures begin to decline after peaking this century because of climate change, the risks to biodiversity could persist for decades after, finds a new study by UCL and University of Cape Town researchers.
The paper, published in Philosophical Transactions of the Royal Society B: Biological Sciences, models the potential impacts on global biodiversity if temperatures increase by more than 2°C compared to pre-industrial levels, before beginning to decline again.
The Paris Agreement, signed in 2015, aims to limit global warming to well below 2°C, preferably to 1.5°C. However, as global greenhouse gas emissions continue to increase, many scenarios now feature a multiple decades-long ‘overshoot’ of the Paris Agreement limit, then factor in the effects of potential carbon dioxide removal technology to reverse dangerous temperature rise by 2100.
Climate change and other human influences are already causing an ongoing biodiversity crisis, with mass die-offs in forests and coral reefs, altered species distributions and reproductive events, and many other ill effects.
Read more at University College London
Image: Map displaying the maximum percentage pf species exposed to unsafe temperatures between 2015 and 2300, showing how in many tropical regions, the majority of species will be at risk. (Credit: University College London)
