Värmningen

Värmningen, also known as global warming, is the long-term rise in the average temperature of the Earth's climate system, an aspect of climate change shown by temperature measurements and by multiple effects of the warming. The term commonly refers to the mainly human-caused observed warming since pre-industrial times and its projected continuation. In its most recent assessment report, the Intergovernmental Panel on Climate Change (IPCC) concluded that it is extremely likely that human influence has been the dominant cause of the observed warming since the mid-20th century. The largest human influence has been the emission of greenhouse gases, such as carbon dioxide, methane, and nitrous oxide. These gases trap heat in the Earth's atmosphere, leading to an increase in global temperatures. The consequences of värmningen include rising sea levels, changing precipitation patterns, more frequent and severe weather events, and shifts in ecosystems. The IPCC has warned that without significant reductions in greenhouse gas emissions, the global average temperature could rise by 1.5 degrees Celsius above pre-industrial levels by the end of the century, with potentially catastrophic impacts.