What Causes Rising Atmospheric CO2?

Science Matters

This post is prompted by a recent exchange with those reasserting the “consensus” view attributing all additional atmospheric CO2 to humans burning fossil fuels.

The IPCC doctrine which has long been promoted goes as follows. We have a number over here for monthly fossil fuel CO2 emissions, and a number over there for monthly atmospheric CO2. We don’t have good numbers for the rest of it-oceans, soils, biosphere–though rough estimates are orders of magnitude higher, dwarfing human CO2.  So we ignore nature and assume it is always a sink, explaining the difference between the two numbers we do have. Easy peasy, science settled.

What about the fact that nature continues to absorb about half of human emissions, even while FF CO2 increased by 60% over recent decades? What about the fact that so far in 2020 FF CO2 has declined significantly with no discernable impact on rising atmospheric CO2?


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Rupert Murdoch’s son James quits News Corp in climate change row

Tallbloke's Talkshop

Someone else who can’t believe the climate can change naturally. But it always has done so.
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He resigns from the influential media company’s board, citing “disagreements over editorial content”, reports BBC News.

In a filing to US regulators, he said he also disagreed with some “strategic decisions” made by the company.

The exact nature of the disagreements was not detailed.

But Mr Murdoch has previously criticised News Corp outlets, which include the Wall Street Journal, for climate change coverage.

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SARS Cross-Immunity from T-cells

Science Matters

The functions of helper T cells in increasing immune activity (A) and killer T cells in killing virus-infected cells (B).

The breaking news is in an accelerated preview article at Nature SARS-CoV-2-reactive T cells in healthy donors and patients with COVID-19. Excerpts in italics with my bolds.


Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the rapidly unfolding coronavirus disease 2019 (COVID-19) pandemic1,2 . Clinical manifestations of COVID-19 vary, ranging from asymptomatic infection to respiratory failure. The mechanisms determining such variable outcomes remain unresolved. Here, we investigated SARS-CoV-2 spike glycoprotein (S)-reactive CD4+  T cells in peripheral blood of patients with COVID-19 and SARS-CoV-2-unexposed healthy donors (HD). We detected SARS-CoV-2 S-reactive CD4+ T cells in 83% of patients with COVID-19 but also in 35% of HD. S-reactive CD4+ T cells in HD reacted primarily to C-terminal S epitopes, which show a higher homology to spike glycoproteins of human endemic…

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Why herd immunity to COVID-19 is reached much earlier than thought – update

Climate Etc.

By Nic Lewis

I showed in my May 10th article Why herd immunity to COVID-19 is reached much earlier than thought that inhomogeneity within a population in the susceptibility and in the social-connectivity related infectivity of individuals would reduce, in my view probably very substantially, the herd immunity threshold (HIT), beyond which an epidemic goes into retreat. I opined, based on my modelling, that the HIT probably lay somewhere between 7% and 24%, and that evidence from Stockholm County suggested it was around 17% there, and had been reached. Mounting evidence supports my reasoning.[1]

I particularly want to highlight an important paper published on July 24th “Herd immunity thresholds estimated from unfolding epidemics” (Aguas et al.).[2] The author team is much the same as that of the earlier theoretical paper (Gomes et al.[3]) that prompted my May 10th article.

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Julia Leaves Green Party Spokesman Speechless


By Paul Homewood

h/t WUWT

Back in February the Court of Appeal ruled against Heathrow’s third runway. The following day, Julia Hartley-Brewer interviewed Caroline Russell, National Transport Spokesperson for the Green Party and Chair of the London Assembly Environmental Committee.

I recall the car crash of an interview, but WUWT have now found it on You Tube.

The whole thing is absolutely hilarious, and throughout Russell can find little to say other than “but we must switch to renewable energy“.

The segment at 11 mins in is particularly worth listening to, where JHB asks how much of our energy comes from wind/solar. Russell has no clue at all, even to the nearest 10%, but promises to google it. Panicking, she then says that there is a twitter website showing hourly figures, but the they go up and down a lot. JHB, with a mischievous grin, replies that that…

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Six good years in a row for the polar bear subpopulation used to predict species demise


In something resembling a new pattern for Western Hudson Bay polar bears, most of the animals are still out on the ice in late July this year, just like they were in the 1980s. The same thing happened last year but was brushed off as a happy anomaly. However, after last fall’s 1980s-like early freeze-up, this makes the sixth year in a row of good to very good sea ice conditions for Western Hudson Bay polar bears. No wonder polar bear experts haven’t published these data: good sea ice conditions along with polar bears coming ashore fat and healthy are not just inconvenient – they threaten to destroy the extinction panic narrative that depends on Western Hudson Bay bears showing evidence of harm from reduced sea ice.

WH 18 Sat July 2020 noon PT Cape East fat mother and cub_Wakusp NP explore dot org livecam Fat mother and cub onshore at Wakusp National Park, Western Hudson Bay 18 July 2020, one of the first of the season.


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