Here’s something surprising from Paul Homewood, Not A Lot Of People Know That. While USA wildfires are running higher the last couple of years, according to Canada’s National Forestry Database, the number of forest fires in Canada has been at the lowest since 1990. Of course, Canada takes a management approach to forests compared to the USA’s “let it be or litigation” mess.
Source: http://nfdp.ccfm.org/en/data/fires.php
According to the Met Office, global warming is leading to record breaking fires in North America.
Canada, of course, is a large part of North America, so surely fires should be getting worse there too.
In fact wildfires this year are running at just 8% of the 10-year average:
From the GWPF and the better late than never department: (the paper was published in late 2019 but seems pretty solid, using Oxygen18 isotope analysis) – Anthony
A new analysis of global air temperature by researchers from Tongji University in Shanghai has cast light on the much debated recent hiatus in global temperature.
Writing in the Journal of Earth Science the Chinese scientists say there was a rapid rise in global mean surface air temperature after the late 1970s but that this stalled and there was a relative stagnation and even slight cooling that lasted for about 15 years (1998–2012). They add that even though the slowdown was acknowledged by the Intergovernmental Panel on Climate Change Fifth Assessment Report (IPCC AR5) and termed as a hiatus (IPCC, 2013) there was a debate in the scientific community about whether there was a hiatus in global warming or not.
The researchers believe that the debate about the global warming hiatus poses a substantial challenge to our understanding of the global climate response to anthropogenic greenhouse gas emissions and natural variability. They say that the disagreements about the recent global warming hiatus mainly arise from different sources, among which differences across observational SAT datasets may be a key contributor to the contradictory conclusions. So they use an alternative set of data.
They use the ratio of two oxygen isotopes in precipitation, oxygen 16 and 18, which is a proxy for the temperature of precipitation and surface temperature. They are particularly interested in what they term a “robust correlation” between precipitation oxygen ratios and surface temperature over mid- and high-latitude regions. Twelve stations were selected of which ten are located in Europe, and the remaining two in Antarctica and North America, respectively. Using the data they constructed a composite isotope index spanning 1970–2016 by combining twelve precipitation oxygen isotope records collected over mid and high-latitude continents. With it they evaluate the recent global warming hiatus.
A merdional (wavy) jet stream flow is diverting brutal polar air to the mid-latitudes in BOTH hemispheres. Every continent on the planet is currently receiving out-of-season snow and anomalous cold, with a few of the worst hit nations being New Zealand, Australia, the United States, and France.
NEW ZEALAND
A spring weather bomb has battered New Zealand, closing roads, dumping snow on beaches and causing dozens of flight cancellations.
The NZ Met service has described the low-pressure system moving up the country from Antarctica as “very unusual in how widespread and severe the weather is” — they have called it a significant weather event.
The National Institute for Water and Atmospheric Research said parts of the South Island shivered through record-breaking lows of -20C (-4F) on Monday and Tuesday.
Flights were cancelled up and down the South Island due to heavy snow.
Disruptive flurries were even reported a sea-level: very unusual for spring:
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La géologie, une science plus que passionnante … et diverse
