The effects of Climate change are irreversible.
The rise in sea levels is linked to three primary factors, all induced by this ongoing global climate change (as reported by National Geographic):
- Thermal Expansion: When water heats up, it expands. About half of the past century’s rise in sea level is attributable to warmer oceans simply occupying more space.
- Melting Glaciers and Polar Ice Caps: Large ice formations, like glaciers and the polar ice caps, naturally melt back a bit each summer. In the winter, snows, primarily from evaporated seawater, are generally sufficient to balance out the melting. Recently, though, persistently higher temperatures caused by global warming have led to greater-than-average summer melting as well as diminished snowfall due to later winters and earlier springs. This imbalance results in a significant net gain in the ratio of runoff to ocean evaporation, causing sea levels to rise.
- Ice Loss from Greenland and West Antarctica: As with the glaciers and ice caps, increased heat is causing the massive ice sheets that cover Greenland and Antarctica to melt at an accelerated pace. Scientists also believe meltwater from above and seawater from below is seeping beneath Greenland’s and West Antarctica’s ice sheets, effectively lubricating ice streams and causing them to move more quickly into the sea. Higher sea temperatures are causing the massive ice shelves that extend out from Antarctica to melt from below, weaken, and break off.
Not only sea levels will rise, but these parts of USA will become vast deserts, and although it’s scary and funny at the same time to say that now is the best time to buy land in Greenland!
However, sea levels have been rising with a blazing speed every year, and the Intergovernmental Panel on Climate Change recons that they could rise by 1+ meter by the end of this century.
National Geographic showed us in 2013 that sea levels would rise by 216 feet if all the land ice melts.
This would bring catastrophe to the world and drown many of the world’s major cities, as shown bellow in the video.