Reduced agricultural production, water scarcity, rising sea levels and other adverse effects of climate change could cause up to 216 million people to migrate within their own countries by 2050.
Weather-related disasters have skyrocketed over the past half-century, causing far more damage even as better warning systems have meant fewer deaths, the UN said.
President Carlos Alvarado met this week with Alok Sharma, the British politician who will preside over the 2021 United Nations Climate Change Conference, known as COP26.
