by VENCORE WEATHER, March 20, 2017
Third weakest solar cycle since 1755
A recent publication has analyzed the current solar cycle and has found that when sunspot anomalies are compared to the mean for the number of months after cycle start, there have been only two weaker cycles since observations began in 1755. Solar cycle 24 began in 2008 after a historically long and deep solar minimum which puts us more than eight years into the current cycle.
by David Archibald, March 8, 2010
The greenhouse gasses keep the Earth 30° C warmer than it would otherwise be without them in the atmosphere, so instead of the average surface temperature being -15° C, it is 15° C. Carbon dioxide contributes 10% of the effect so that is 3° C. The pre-industrial level of carbon dioxide in the atmosphere was 280 ppm. So roughly, if the heating effect was a linear relationship, each 100 ppm contributes 1° C. With the atmospheric concentration rising by 2 ppm annually, it would go up by 100 ppm every 50 years and we would all fry as per the IPCC predictions.
But the relationship isn’t linear, it is logarithmic. In 2006, Willis Eschenbach posted this graph on Climate Audit showing the logarithmic heating effect of carbon dioxide relative to atmospheric concentration
by David Middleton, March 20, 2017
Firstly, the prime minister is exactly correct: “No country would find 173 billion barrels of oil in the ground and just leave them there.” Particularly if those 173 billion barrels were proved reserves. At $50/bbl, 173 billion barrels is worth a lot of dollars… both US and Canadian.
Secondly, the prime minister is exactly correct here too: “The prime minister has long maintained that developing fossil-fuel resources can go ‘hand in hand’ with fighting climate change.” Since fighting climate change is about as possible as fighting plate tectonics or entropy, it absolutely “can go ‘hand in hand’ with” developing fossil fuel resources.
par Ifri, 20 mars 2017
Après cinq ans de baisse continue, les prix du charbon « vapeur » (type de charbon principalement utilisé dans les centrales thermiques et dans certaines industries, notamment pour fabriquer du ciment) ont doublé entre le début et la fin de l’année 2016, tant en Europe qu’en Asie. La demande mondiale de charbon, qui provient toujours pour moitié de la Chine, a pourtant baissé en 2016.
by Kenneth Richard, March 20, 2017
According to an estimate of global sea surface temperature (SST) changes during the last 2,000 years (“Robust global ocean cooling trend for the pre-industrial Common Era“), the addition of the last 2 centuries (1800 to 2000 C.E.) of relatively modest SST warming only changes the overall per-millennium global cooling trend (~0.4°C) by one tenth of one degree. In other words, using a long-term perspective, the Holocene cooling trend has continued largely uninterrupted during the last two centuries.