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Politics : Politics of Energy
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To: Brumar89 who wrote (76168)4/14/2017 2:45:31 PM
From: Brumar89  Read Replies (2) of 86355
 
Shedding new light on global warming

We are still warming slightly­­ from a minor Ice Age called the “Little Ice Age”. This was the coldest sustained period over the past 10,000 years and glaciers and sea ice advanced to record levels up to about 1700.

There has been some warming since that time and there is nothing unusual or unprecedented about the Earth’s recovery since then.

The warming since 1850 is about 0.8C, according to HAD 4 surface data, and that’s about 0.5C per century.

The latest data shows less sensitivity to CO2 and this shows up in PR studies. For example, there are a number of recent sea level rise and glacier studies that show a deceleration or little change since 1950.

And all models for Antarctica and Greenland show little sea level­ rise problems for the next 300 years.

But fossil fuels (coal, oil and gas) have certainly changed our health and well-being over 200 years.

From the time of the first humans­­­ until 1810 the average life expectancy was less than 40 years.

As the industrial revolution progressed this life expectancy also rapidly increased and today the first world has an average life expectancy of about 80 years and developing countries are catching up fast.

And a baby born today in Aust­ralia has an average life expectancy of 90 years.

CO2 has also caused greening of the Earth over the past 35 years and this shows up in satellite data. It is the best plant fertiliser and also helps with drought tolerance as well.

I’m not interested in silly religious dogma and I only refer to evidence, data and the scientific method, but please look up Dr Hans Rosling’s efforts to try to educate people right around the world. See YouTube for Rosling’s “200 countries since 1810” and his TED talk trying to dispel our ignorance.

sunraysiadaily.com.au
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