Scientists expect 41% of the projected global population to face the extremes, with ‘no part of the world’ immune

The number of people living with extreme heat will more than double by 2050 if global heating reaches 2C, according to a new study that shows how the energy demands for air conditioners and heating systems are expected to change across the world.

No region will escape the impact, say the authors. Although the tropics and southern hemisphere will be worst affected by rising heat, the countries in the north will also find it difficult to adapt because their built environments are primarily designed to deal with a cooler climate.

European retailers urge traders to adhere to commitments after Brazilian lawmakers wreck forest protection pact

Leading British and European retailers are trying to salvage the core elements of the Amazon soy moratorium after the world’s most successful forest protection agreement was wrecked by Brazilian lawmakers and abandoned by international traders.

In an open letter, high street brands including Tesco, Sainsbury’s and Asda say the breakdown this month of the 20-year-old agreement will damage consumer confidence unless new arrangements are put in place to ensure grain production is not linked to deforestation.