Scientific Director of the BC3 Basque Centre for Climate Change and president of the Alliance of Severo Ochoa Centres and María de Maeztu Units (SOMMa)
An analysis published in Nature Climate Change estimates that food consumption worldwide could add 1°C to global warming by 2100. The study also says that more than half of this warming could be avoided by adopting a healthy diet, improving food system practices, and reducing food waste.
Although in 2020 the covid-19 pandemic caused confinement and economic paralysis in many countries, the rate of methane growth in the atmosphere peaked, reaching the highest level since 1984. Research published in Nature claims that the main source would be the warmer, wetter wetlands of the northern hemisphere.
After two long weeks of negotiations and outside the official deadline, COP27 has reached an agreement to create a loss and damage fund to help the most vulnerable countries face the impacts of the climate crisis. However, other issues such as greater ambition in mitigation strategies to avoid exceeding 1.5ºC of warming and less dependence on fossil fuels have not achieved the commitment of all parties.
British researchers have analysed the extent to which various types of extreme weather events are attributable to climate change. In the case of heatwaves, they find an unequivocal link. They estimate that the 35 worldwide between 2000 and 2020 have caused at least 157,000 deaths and warn that it is very likely that the impact of this phenomenon is being underestimated.