2020 Atmosphere Ozone 
Real Climate
JULY 10, 2022
The fact that there is a natural greenhouse effect (that the atmosphere restricts the passage of infra-red (IR) radiation from the Earth’s surface to space) is easily deducible from; i) the mean temperature of the surface (around 15ºC) and, ii) knowing that the planet is normally close to radiative equilibrium. in IPCC TAR).
Real Climate
JANUARY 28, 2024
Now, this is the exact same model data that Spencer is using (from McKitrick and Christy (2020) (though the screening uses the TCR from our paper), and updated TLT satellite data. Model trends: 0.29ºC (all models) [0.20,0.46] 95% spread, 0.27ºC/dec (screened) [0.20,0.34]. Casas, G.A. Schmidt, R.L. Tsigaridis, L.S. Nazarenko, S.E.
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Real Climate
SEPTEMBER 19, 2021
In 2020, CO 2 was at ~410 parts per million, while CH 4 was around 1870 parts per <it>billion</it> (or 1.87 But methane’s role in atmospheric chemistry and as a source of stratospheric water vapour means that it has a bigger effect on climate than just the direct effect of its concentration. W/m 2 for CH 4.
Real Climate
NOVEMBER 18, 2023
“It’s [the albedo is] kept the same” [False – for instance here is a paper (Loeb et al, 2020) comparing the changes in albedo in models to the CERES observations]. It is still the case that variations in cloud feedbacks are the dominant source of variability of climate sensitivity in models (Zelinka et al, 2020).
Real Climate
MAY 12, 2021
Meanwhile, note that the factors listed above involve the whole Earth system: the oceans, the cryosphere, the atmosphere, the solid earth and lithosphere, and a full range of scales, from the city block and shoreline, to ice dynamics that change over kilometers, to GRD footprints, to the whole global ocean. 2020) or Sadai et al.
Breezometer
AUGUST 16, 2021
California's summer of 2021 has seen record-breaking wildfire outbreaks, surpassing 2020 by over 500 fire events by mid-July. Over the period of 2020 and 2021, California has also experienced its two largest wildfires ever , the Dixie and August Complex fires. Levels of Ground-level Ozone Pollution Can Increase in Summer.
Circle of Blue
SEPTEMBER 20, 2022
After the 2014 shutdown Toledo spent $53 million to install an ozone treatment system at the city’s drinking water plant to safeguard customers from algal toxins, said Andrew McClure, the plant’s administrator. It came as little surprise when, in 2020, the bill was struck down in federal court for being overly vague.
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