[avandonk]

It is very simple Matt. Global warming due to our burning of fossil fuels is real. The evidence now is overwhelming. The people you saw in those videos were arguing their claptrap while the jury was still out.
They are all on the fringes of science. The name should give it away. Science does not need friends it needs very good practioners. That means sceptical well educated people who can look at the evidence and draw some rational evidence based conclusions.

Here are a few scary facts

The tundra in Siberia is melting. This is where frozen whole hairy mammoth elephants are found. I have heard they serve steaks from these animals for a price. These animals have been extinct for more than 5k or 10k years.

The forests of north America and Canada are being devastated by a beetle that never previously could not survive so far north due to the cold. The trees have no natural resistance.

The Antarctic ice sheet and sea ice is receding at at unprecedented rate.

I can go on and on and on...


They lied in the video. Ice core records of CO2 concentration in the Earth's atmosphere are closely correlated with temperature. The ancient temperature of the Earth can be ascertained by isotopic ratios of elements in these very same ice cores. How this is done is by analysing the bubbles trapped in the ice. I have personally had a whisky and ice with 200,000 year old ice. When the ice gets thin near a bubble it causes a mini explosion as the gas is trapped at a very high pressure. These mini explosions cause the glass to tinkle and you can see the ice moving randomly.

Bert