The climate change debate continues.

[onetrack]

I'm a little puzzled as to how scientists get really precise CO2 measurements from 5000 and 6000 years ago, when they didn't have their current instruments there.

[onetrack]

There is also scientific proof that the Earth suffers from mega-droughts about every 1000 years. These mega-droughts have been blamed for civilisation collapse in some regions, where entire civilisations just disappeared.

 

If there are mega-droughts on a regular basis, this indicates long-term cyclical events in the climate, such as extreme heat periods, extreme rainfall periods, and extreme storms.

Yet, the climate scientists tell us all these previously-mentioned events are simply the result of GW. I think the whole story is a lot more complex.

 

We certainly have pumped a lot of pollutants into our atmosphere since the start of the Industrial Revolution, and anything we can do to moderate that, must be advantageous.

[octave]

58 minutes ago, onetrack said:

I'm a little puzzled as to how scientists get really precise CO2 measurements from 5000 and 6000 years ago, when they didn't have their current instruments there.

Drilling ice cores. The deeper they drill the further back in time they go. The gas in these ice cores is a sample of the atmosphere at the time.

 

https://climate.mit.edu/ask-mit/how-do-we-know-how-much-co2-was-atmosphere-hundreds-years-ago

Edited 50 minutes ago by octave