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Greenhouse gases ‘reached record highs’ in 2021, say UN climate worriers

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Climate alarmists love to refer to ‘heat-trapping’ greenhouse gases, but never explain how trace gases – or any gases – can trap heat in an openly convecting atmosphere. The UN also conveniently forgets that water vapour is by far the most prevalent radiative gas, while claiming ‘the warming effect of greenhouse gases has risen by nearly 50% between 1990 and 2021’. Methane is measured in parts per *billion* in the atmosphere but is still deemed good for regular alarm attempts. All grist to their COP27 mill.
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The world saw a record jump in levels of methane in the atmosphere last year as the main heat-trapping greenhouse gases reached new highs, UN experts said.

The World Meteorological Organisation’s (WMO) annual bulletin shows the three main greenhouse gases – carbon dioxide, methane and nitrous oxide – all reached record high concentrations in the atmosphere in 2021, showing the world was “heading in the wrong direction” on climate change, says The Ecologist.

And potent greenhouse gas methane saw the biggest year-on-year jump in levels since measurements began nearly 40 years ago.

Cement

The WMO said the reason for the leap in methane was not clear but it seems to be the result of both biological and human-induced processes.

Methane, a strong but short-lived greenhouse gas, is produced from a range of sources, including natural wetlands, agriculture and fossil fuel production.

The report said the increase in methane levels in recent years was thought to be predominantly from biological sources such as wetlands or rice paddies.

But it was not yet clear if that was partly due to increased emissions from wetlands as a result of global warming speeding up the natural decomposition processes that give rise to methane.

Increases in levels of carbon dioxide – the main greenhouse gas – from 2020 to 2021 was larger than the average annual growth rate over the last decade, with concentrations reaching 415.7 parts per million (ppm) last year, mostly due to fossil fuels and cement production.

Temperatures

Carbon dioxide concentrations in the atmosphere have increased nearly 50% since the beginning of the industrial revolution, when it was around 280ppm.

Nearly half (48%) of the total carbon emissions from human activities during the 2011-2020 period built up in the atmosphere, while 26% was absorbed by the oceans and 29% in land ecosystems such as forests, the report said.

But experts are concerned that the ability of natural land areas and oceans to act as “sinks” absorbing carbon dioxide will become less effective, reducing their ability to act as a buffer against larger temperature rises.

Overall, the warming effect of greenhouse gases has risen by nearly 50% between 1990 and 2021.

WMO secretary-general Petteri Taalas said the bulletin “has underlined, once again, the enormous challenge – and the vital necessity – of urgent action to cut greenhouse gas emissions and prevent global temperatures rising even further in the future”.

Full article here.


Source: https://tallbloke.wordpress.com/2022/10/30/greenhouse-gases-reached-record-highs-in-2021-say-un-climate-worriers/


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