Short answers, pulled from the story.
Nearly a third of the overall tree cover loss occurred within humid tropical primary forests in 2019. These areas are mature rainforests that hold immense value for biodiversity and carbon storage.
Scientists state that tropical deforestation releases 1.5 billion tons of carbon each year into the atmosphere. A 2022 study shows annual carbon emissions from tropical deforestation have doubled during the last two decades.
Rates of deforestation sharply accelerated around 1852. Total land coverage by tropical rainforests decreased from 14% to 6% as the process continued through the modern era.
Up to 90% of West Africa's coastal rainforests have disappeared since 1900 and Madagascar has lost 90% of its eastern rainforests. In South Asia, about 88% of the rainforests have been lost while Mexico, India, the Philippines, Indonesia, Thailand, Burma, Malaysia, Bangladesh, China, Sri Lanka, Laos, Nigeria, the Democratic Republic of the Congo, Liberia, Guinea, Ghana and the Ivory Coast have also lost large areas of their rainforest.
According to the World Economic Forum, 31% of emerging diseases are linked to deforestation. The majority of new infectious diseases affecting humans are zoonotic and their emergence may be linked to habitat loss due to forest area change.
In November 2021, 141 countries agreed at the COP26 climate summit in Glasgow to the Glasgow Leaders' Declaration on Forests and Land Use. The agreement was accompanied by about $19.2 billion in associated funding commitments.