Humans have so far warmed the planet 1.1 degrees Celsius (2 degrees Fahrenheit) since preindustrial times, mainly by burning coal, oil and gas for energy, and by cutting down forests, which help absorb the planet-warming emissions created by fossil fuel use. To hold global temperature rise to a safer limit of 1.5 degrees Celsius, far more drastic action is needed.Īs world leaders gather in Glasgow for a United Nations climate summit next week, the focus will be on one crucial number: How many degrees hotter will the Earth get? And how do we keep that number as small as possible? Yet scientists and world leaders increasingly say even that much warming is too risky.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |