Boris Johnson will unveil the agreement at the Cop26 summit in the presence of the US president, Joe Biden, the Prince of Wales and the Indonesian president, Joko Widodo. By signing the Glasgow Leaders’ Declaration on Forest and Land Use, presidents and prime ministers from major producers and consumers of deforestation-linked products will commit to protect forest ecosystems. World leaders have agreed a deal that aims to halt and reverse global deforestation over the next decade as part of a multibillion-dollar package to tackle human-caused greenhouse gas emissions. Hello, Warren Murray here to embiggen your knowledge of current affairs. Top story: ‘Zero chance if we lose the great forests’