You are missing the point. If you look back 6 million years (they do this through deep ice core samples), the natural condition of the planet is to be cold. There are long periods of ice ages interrupted by brief spikes of warming. The current warming period we are in has been one of the longest lasting, and that is likely do to human factors. But the "cosmic" factors that lead to the big cycles are hugely more powerful. Many scientists now say that before the end of this century (ie, within the next 80 years) we are due according to these big cycles to enter the next ice age. These transitions are abrupt, it won't occur over hundreds of years, we will see winters getting colder and longer for several years, then all of a sudden it will be winter all year long. This is the alarm that is being sounded. A run away greenhouse hot planet is not what's in our future ... we should be preparing for a future where most of the agricultural area of the planet being under miles of ice.
Best Posts in Thread: DOES YOUR PROPERTY GET FLOODED ? COASTAL RISK MAP FOR 2050
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As for determining historic temperatures. Calcium carbonate in shells and ice sheets. We can determine what the historic temperatures were from sampling these.- Agree x 2
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tuba-coma DI Forum Adept Showcase Reviewer
people who doubt the climate change will not be interested, all others can scroll here through an interesting map:
LAND PROJECTED TO BE BELOW ANNUAL FLOOD LEVEL IN 2050 COASTAL RISK SCREENING TOOL
https://coastal.climatecentral.org/...turn_level=return_level_1&slr_model=kopp_2014
spoiler: there might be problems in Zamboanguita and parts of Bacong ... if you have property in Manila you really might get screwed up ...
here the link to the article in today's Manila Inquirer
https://technology.inquirer.net/921...ely-to-sink-metro-manila-cities-by-2050-study
- Thanks x 1
- Informative x 1