Human activity is changing the Earth's climate unprecedentedly in thousands or hundreds of thousands of years, with some changes that are inevitable and irreversible, climate scientists have warned .
Within the next two decades, temperatures are likely to rise by more than 1.5 degrees Celsius, violating the expectations of the 2015 climate deal in Paris and bringing devastation and extreme weather.
Only rapid and drastic reductions in greenhouse gases in this decade can prevent terrible impacts on climate, according to the International Panel on Climate Change, the world's leading authority on climate science.
The comprehensive assessment published on Monday, the sixth such report since 1988, has been prepared for 8 years in a row, evaluating the work of hundreds of experts and expert reviews. He represents the full knowledge to date on the physical basis of climate change and found that human activity was undoubtedly the cause of rapid change, including rising sea levels, melting polar ice and glaciers, heat waves, floods, and droughts.
World leaders said the harsh findings should force new political measures, as a matter of urgency, to change the global economy in favor of climate.
António Guterres, the UN Secretary-General, warned: "[This report] is an alarm for humanity. "Alarm bells are deafening and the evidence is incontrovertible: greenhouse gas emissions from burning fossil fuels and deforestation are drowning our planet and putting billions of people at immediate risk."
Burimet: Intergovernmental Panel on Climate Change, New York Times, Guardian