One of the refrains from warmists is that the science is settled, no more arguments can be countenanced, the earth is warming and the scientists almost all agree.
It is of course a fallacy that the scientists agree and the 97% figure claimed has been thoroughly debunked.
There was a time Â when scientists presented evidence and other scientists examined the work and either supported the hypothesis or destroyed it. These days they seem more intent on developing consensus rather than proof.
We have seen this before too, remember the Ozone calamity?
Well apparently that was as over hyped by the scientists as the current climate scare….and so too is the “fix” to the ozone layer.
Matt Ridley writes:
My recentÂ Times column argued that the alleged healing of the ozone layer is exaggerated, but so was the impact of the ozone hole over Antarctica:
The ozone layer is healing. Or so said the news last week. Thanks to a treaty signed in Montreal in 1989 to get rid of refrigerant chemicals called chlorofluorocarbons (CFCs), the planetâs stratospheric sunscreen has at last begun thickening again. Planetary disaster has been averted by politics.
For reasons I will explain, this news deserves to be taken with a large pinch of salt. You do not have to dig far to find evidence that the ozone hole was never nearly as dangerous as some people said, that it is not necessarily healing yet and that it might not have been caused mainly by CFCs anyway.
The timing of the announcement was plainly political: it came on the 25th anniversary of the treaty, and just before a big United Nations climate conference in New York, the aim of which is to push for a climate treaty modelled on the ozone one.
Hereâs what was actually announced last week, in the words of a Nasa scientist, Paul Newman: âFrom 2000 to 2013, ozone levels climbed 4 per cent in the key mid-northern latitudes.â Thatâs a pretty small change and it is in the wrong place. The ozone thinning that worried everybody in the 1980s was over Antarctica.
Over northern latitudes, ozone concentration has been falling by about 4 per cent each March before recovering. Over Antarctica, since 1980, the ozone concentration has fallen byÂ 40 or 50 per cent each September before the sun rebuilds it.
So whatâs happening to the Antarctic ozone hole? Thanks to a diligent blogger named Anthony Watts, I came across a press release also from Nasa about nine months ago, which said: â Two new studies show that signs of recovery are not yet present, and that temperature and winds are still driving any annual changes in ozone hole size.â Â Â Read more »