Leon Simons 🌍
@LeonSimons8
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Host of Climate Chat | Plain climate science & DATAVIZ | Mission: To Understand and Protect the Home Planet
On a rapidly changing planet
Joined September 2010
I posted this 2 years ago. After which we experienced 2 years of 1.6°C above the Paris' pre-industrial (1850-1900) baseline. We expected a big jump in global warming because greenhouse gas emissions keep increasing, aerosols decreased and Earth's Energy Imbalance had doubled.
This might be the year everything changes, as those who don't count joules and radiative fluxes are too starting to feel the heat from reducing air-pollution. Many great scientists have tried to inform on this in the past decades (e.g. James Hansen, James Lovelock, Paul Crutzen
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The Earth energy imbalance (EEI) is best looked at over longer periods, as short-term impacts from ENSO, volcanoes, solar cycle, cloud cover and aerosols can create a lot of volatility. Here is a graph showing the 36-month running average for the EEI, currently at 11.2 HpS.
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🌊 🧊 📉 Global Sea Ice Area Maximum never peaked lower than it did this year... Less sea ice leads to less sunlight reflection back to space, more (high latitude) heat uptake and even faster ice melt.
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We talked about this in detail on Climate Chat recently: https://t.co/S5aGfzbH19
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The scientific understanding is that we should see a decrease in Absorbed Solar Radiation from a negative PDO and a decreasing Net flux Anomaly as the North Pacific rapidly warms. The opposite is happening and that's a Big F*cking Deal (BFD), to use @DrJamesEHansen his phrasing
Sunday 9/21 at 10am PT on Climate Chat: "What the Hell is Going On in the North Pacific?" with hosts Dan Miller & @LeonSimons8. YouTube live & recorded link: #ClimateCrisis #globalwarming
https://t.co/BHFMagNdye
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@valevalerio3 A (near) peak La Niña month is quite different from a month during the peak of a Super El Niño:
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The Sea Surface Temperatures around Europe jumped by almost 0.4°C in a few years! This is a regional aerosol termination shock. The impact of sulphur emissions over land, peaking around 1980 and rapidly decreasing thereafter, is clearly visible too:
@Peters_Glen @hausfath Because the termination of aerosols leads to very rapid regional and global warming. Which can be a shock. We used 0.2°C/decade of additional warming. The desulphurisation happened over the oceans, which cover 71% of Earth’s surface and take up ~90% of the heat. Better graph:
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For those of us living below or near sea level, understanding (and halting) the rate of ice sheet melt this century is crucial for our survival. The tireless work by Eric and his colleagues, studying the frozen parts of our planet, is invaluable. https://t.co/KjQqkN2vyk
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🇦🇶🧊 'Doomsday Glacier' Update At Climate Chat we have the opportunity to have in depth conversations with world leading experts in their fields. Eric Rignot has studied ice sheets from space and from up close for over thirty years. See our full conversation linked below 👇
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I'm terrible at this, but why hasn't anyone else made a Shooting Star version of this amazing picture?
Immense planning and technical precision was required for this absolutely preposterous (but real) view: I captured my friend @BlackGryph0n transiting the sun during a skydive. This might be the first photo of it's kind in existence. See a video of this moment in the reply 👇
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Now Live!: Climate Chat: 'Doomsday Glacier' Update https://t.co/KjQqkN1XIM
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Now Live!: Climate Chat: 'Doomsday Glacier' Update https://t.co/KjQqkN1XIM
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Join us live on Climate Chat: 'Doomsday Glacier' Update
Sunday 11/16 at 10am PT on Climate Chat: 'Doomsday Glacier' Update with glaciologist and climate scientist Eric Rignot. What happens in Antarctica does not stay in Antarctica! YouTube link: https://t.co/3ch367Sbns
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Periodic reminder that (poorly) eyeballing graphs is no substitute for objective data assessment.
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Glad to live in a country with universal health care, so we don't need to wait for robot doctors for poor people to get quality care.
Optimus will eliminate poverty and provide universal high income for all
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The cold tropical pacific (= La Niña) brings us the lowest Global Sea Surface Temperature Anomaly in 1043 days! See January 8th 2023 for comparison.
Ignoring the tropics because of El Niño/La Niña, the past 12 months show record Sea Surface Temperatures for both hemispheres. And the acceleration of warming over the Northern Hemisphere is painfully obvious:
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Last year's estimate for 2024 was off by a mile, so I don't put much trust in the 2025 estimate.
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Get off the internet and read a science book, you lazy couch potatoes.
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Why are most climate denial talking points still stuff we've known for hundreds of years? CO₂ is plant food and climate has always changed? Our kids learn that in early primary school..
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To all those flying to Brazil to talk about climate change at #COP30, please note that IPCC authors, Bill Gates and UNEP are all downplaying future climate change. Media around the world are publishing headlines telling the world that we have avoided warming of +3°C by 2100,
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