"My husband dying during the Covid pandemic was a hard blow. I was locked up at home, completely alone, grieving. I only interacted with my mother, who has Alzheimer's." Maria Ángeles Fajardo, 64, still has a broken voice when she remembers it. She pauses briefly and adds: "It was truly horrible. I felt very bad, very depressed and very, very alone."

There are several scientists who point out that as long as greenhouse gas emissions cause an increase in global temperatures, people's health will be at risk. Now, however, a study by the Institute for Global Health (ISGlobal), a centre promoted by the Fundació "la Caixa", reveals that if the necessary measures to mitigate the effects of climate change are not taken urgently, the number of deaths from heat will grow exponentially in the coming decades. The research, published in the scientific journal The Lancet Planetary Health shows that global warming will inevitably lead to a decrease in cold-related mortality and an increase in heat-related deaths, an effect that could be controlled if measures are implemented to reduce the number of CO2 emissions into the atmosphere.