How High The Water Will Be 🗽 w/ Neil deGrasse Tyson


This seems completely disingenuous.  Multiple sources have said that it will take 5,000 years for the polar ice caps to melt.  We are 5,000 to 10,000 years away from the next ice age. 

Meanwhile, we will be out of most fossil fuels within 100 years.  We only have 40 years of oil reserves.   Depending upon who you ask, it can take between 20 and 1,000 years for the CO2 to leave the atmosphere. Between 65% and 80% of it is absorbed by the oceans in 20 to 200 years.*  We are never going to get to the point where the polar ice caps melt.   

 It has taken 140 years for the average atmospheric temperature to rise by 1 degree Celsius.   The current rate of warming is less than 0.2 degrees per decade. We would have to rise 5 degrees Celsius to melt the ice caps. Therefore, we have plenty of time to deal with this problem if it is even a problem.   The rise of the seas will be very slow. 

Climate Alarmism depends upon as-of-yet unproven positive feedback mechanisms, because the effect of increased CO2 is very weak, especially going forward. There are many feedbacks positive and negative. There is widespread disagreement over clouds, where the alarmists think that clouds have positive feedback and the skeptics think that they have negative feedback.

"The lifetime in the air of CO2, the most significant man-made greenhouse gas, is probably the most difficult to determine because there are several processes that remove carbon dioxide from the atmosphere. Between 65% and 80% of CO2 released into the air dissolves into the ocean over a period of 20–200 years. The rest is removed by slower processes that take up to several hundreds of thousands of years,"

"About 50% of a CO2 increase will be removed from the atmosphere within 30 years, and a further 30% will be removed within a few centuries. The remaining 20% may stay in the atmosphere for many thousands of years."

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