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Kees van der Leun Profile picture
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9 Oct, 5 tweets, 2 min read
New Covid-19 wave led by Europe, unfortunately. Tiny Netherlands (0.22% of world population) registering 1.7% of daily new cases now.
Bit of a third wave starting to grow on top of the second wave in the US.
Explosive growth of Covid-19 infections in the Netherlands.
First day ever above:
2,000: 21 September
3,000: 29 September
4,000: 4 October
5,000: 8 October
6,000: 10 October
Same thing in Belgium. Today's +7,950(!) new cases not yet in this graph.

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More from @Sustainable2050

Kees van der Leun Profile picture
10 Oct
Half of the Arctic is 10-20⁰C warmer than normal at the moment. A consequence of the enormous area of sea ice that melted away this summer.
Slow seasonal regrowth of Arctic sea ice so far: extent now almost as low as in disaster year 2012. Image
Ah yes, and 10-20⁰C above normal is 18-36⁰F above normal.
Read 6 tweets
Kees van der Leun Profile picture
2 Oct
China's biggest-ever solar power plant goes live: world's #2 at 2.2 GW! Construction on the project was completed in September after just four months. cnet.com/news/chinas-bi…
2.5 of these would produce as much electricity per year as a 1 GW nuclear power plant running continuously.
But building those solar power plants one after the other would take 10 months instead of 10 years.
Searching a bit more, it looks like the 200 MWh storage took 4 months to complete, but the solar farm itself took 10 months: pv-magazine.com/2020/10/01/wor…
This also states that the plant will deliver power at €0.043/kWh, that's $0.05/kWh.
Read 5 tweets
Kees van der Leun Profile picture
2 Oct
450 mm of rain expected in SE France; 270 mm already fell in one place.
.. already resulting in river flooding and damage. Was that flash caused by a power cable in the bridge?
417 mm of rain recorded within 24 hours at one station in Alpes-Maritimes, north of Nice!
That's half a year's worth in the Netherlands.
Read 9 tweets
Kees van der Leun Profile picture
2 Oct
What happens if Trump is in hospital before 3 November? And what if he dies before the election?
A reminder that Trump is 74 years old.
And then there's lots of people doubting that Trump really was diagnosed with Covid-19; unsurprising given the flood of disinformation coming from the White House these years.
Read 5 tweets
Kees van der Leun Profile picture
1 Oct
Hot off the atmosphere: Based on daily values, the September average of CO2, measured at Mauna Loa was ~411.3 ppm; that's +2.7-2.8 ppm higher than last year.
Overall: still speeding in the wrong direction! ImageImage
Almost every year, September has the lowest monthly average CO2 concentration, due to its seasonal pattern. From here on, we'll see CO2 increasing towards a new 15-million year high in spring, probably peaking close to 420 ppm in May.
Re that seasonal pattern in atmospheric CO2: Overall, trees and plants take up CO2 in summer, and give back CO2 to the atmosphere in winter.
Read 6 tweets
Kees van der Leun Profile picture
29 Sep
In the battle for democracy in the US, Dutch @nrc asks: "Which 70+ year old will come across as the fittest?" Image
Lots of media stories still framing this as a normal democratic contest between candidates with opposing views. "Jolly interesting, let's see how this race develops."
Dutch public TV news, just now, on Trump ignoring/denying and preparing to overrule vaccine approval rules, and Biden confirming those:
"As everything, the vaccine has become a political plaything." Sounds nicely symmetrical.
Read 8 tweets

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