James Edward Hansen(@DrJamesEHansen) 's Twitter Profileg
James Edward Hansen

@DrJamesEHansen

Director of Climate Science, Awareness and Solutions at Columbia University's Earth Institute https://t.co/335VZEDX54
Formerly Director of NASA GISS

ID:708767013804445696

linkhttp://www.columbia.edu/~jeh1/ calendar_today12-03-2016 21:29:59

212 Tweets

26,9K Followers

97 Following

James Edward Hansen(@DrJamesEHansen) 's Twitter Profile Photo

Jump of global temperature in past year is a combination of aerosol-induced warming over a few years and a half-baked El Nino. There is no need for new climate physics to understand the warming. El Nino + next La Nina mean may approach 1.5°C. See Hopium - mailchi.mp/caa/global-war…

Jump of global temperature in past year is a combination of aerosol-induced warming over a few years and a half-baked El Nino. There is no need for new climate physics to understand the warming. El Nino + next La Nina mean may approach 1.5°C. See Hopium - mailchi.mp/caa/global-war…
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Effective climate policy requires knowledge of aerosol effects on clouds. We had better learn soon with whatever approaches work. Time is running short. Much to be done. See 2024 Projection - mailchi.mp/caa/global-war…

Effective climate policy requires knowledge of aerosol effects on clouds. We had better learn soon with whatever approaches work. Time is running short. Much to be done. See 2024 Projection - mailchi.mp/caa/global-war…
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It’s important to clarify ongoing climate change and implications soon. There is limited time to prepare for actions needed to cool Earth and preserve a bright future. Fortunately, some young people are beginning to grasp the situation. See Groundhog Day - mailchi.mp/caa/groundhog-…

It’s important to clarify ongoing climate change and implications soon. There is limited time to prepare for actions needed to cool Earth and preserve a bright future. Fortunately, some young people are beginning to grasp the situation. See Groundhog Day - mailchi.mp/caa/groundhog-…
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An impressive study by Wang et al. provides a partial explanation of how the climate system takes up such a large fraction of human-made carbon emissions. There is a long-standing issue of “missing carbon sinks,” despite efforts to fake it. See Good News - mailchi.mp/caa/good-news-…

An impressive study by Wang et al. provides a partial explanation of how the climate system takes up such a large fraction of human-made carbon emissions. There is a long-standing issue of “missing carbon sinks,” despite efforts to fake it. See Good News - mailchi.mp/caa/good-news-…
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Staggering acceleration of global warming is underway, driven by a huge planetary energy imbalance, which in turn is traced mainly to our Faustian aerosol bargain. Six months more of the acceleration are still to come. See Measuring Stick - mailchi.mp/caa/global-war…

Staggering acceleration of global warming is underway, driven by a huge planetary energy imbalance, which in turn is traced mainly to our Faustian aerosol bargain. Six months more of the acceleration are still to come. See Measuring Stick - mailchi.mp/caa/global-war…
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The United Nations and COP28 are lying. They know the 1.5C and 2C global warming targets are dead. Young people can and should take charge of their future. More later. See: “A Miracle Will Occur” Is Not Sensible Climate Policy - mailchi.mp/caa/a-miracle-…

The United Nations and COP28 are lying. They know the 1.5C and 2C global warming targets are dead. Young people can and should take charge of their future. More later. See: “A Miracle Will Occur” Is Not Sensible Climate Policy - mailchi.mp/caa/a-miracle-…
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James Edward Hansen(@DrJamesEHansen) 's Twitter Profile Photo

Global warming is accelerating as atmospheric pollution declines. We must continue critical observations, so that young people have the knowledge required for wise decisions. See Acceleration of Warming — mailchi.mp/caa/how-we-kno…

Global warming is accelerating as atmospheric pollution declines. We must continue critical observations, so that young people have the knowledge required for wise decisions. See Acceleration of Warming — mailchi.mp/caa/how-we-kno…
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High climate sensitivity and a greater Faustian debt are a double whammy. We need to cool off the planet to maintain shorelines and a propitious climate. That requires a better understanding of the home planet and appropriate observations. See Home Planet: mailchi.mp/caa/to-underst…

High climate sensitivity and a greater Faustian debt are a double whammy. We need to cool off the planet to maintain shorelines and a propitious climate. That requires a better understanding of the home planet and appropriate observations. See Home Planet: mailchi.mp/caa/to-underst…
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James Edward Hansen(@DrJamesEHansen) 's Twitter Profile Photo

El Nino fizzles. Planet Earth sizzles. There are 2 major forcings driving climate change: GHGs and aerosols. The current El Nino will provide a crude measure of the aerosol forcing, the first payment for our Faustian aerosol bargain. See El Nino fizzles - mailchi.mp/caa/el-nino-fi…

El Nino fizzles. Planet Earth sizzles. There are 2 major forcings driving climate change: GHGs and aerosols. The current El Nino will provide a crude measure of the aerosol forcing, the first payment for our Faustian aerosol bargain. See El Nino fizzles - mailchi.mp/caa/el-nino-fi…
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Young people will soon realize that climate intervention is essential to guide the home planet to safe landing, for the sake of humanity and nature. Will we force them to fly blind, without the knowledge needed to achieve a bright future? See Flying Blind: mailchi.mp/caa/global-war…

Young people will soon realize that climate intervention is essential to guide the home planet to safe landing, for the sake of humanity and nature. Will we force them to fly blind, without the knowledge needed to achieve a bright future? See Flying Blind: mailchi.mp/caa/global-war…
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Climate is headed for a new frontier. Here’s how we know. Earth’s energy imbalance also informs us about how much we need to do to stop global warming. See — Uh-Oh: mailchi.mp/caa/uh-oh-now-…

Climate is headed for a new frontier. Here’s how we know. Earth’s energy imbalance also informs us about how much we need to do to stop global warming. See — Uh-Oh: mailchi.mp/caa/uh-oh-now-…
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Physics tells us that global warming is accelerating. The real world is complicated, but physics rules, so we had better work on understanding it and eschew obfuscations. See Peer Review: mailchi.mp/caa/peer-publi…

Physics tells us that global warming is accelerating. The real world is complicated, but physics rules, so we had better work on understanding it and eschew obfuscations. See Peer Review: mailchi.mp/caa/peer-publi…
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Climate seems headed for a new frontier, not seen in more than a million years. Look for continual monthly records, driven by the current extreme planetary energy imbalance. See Climate Dice: mailchi.mp/caa/the-climat…

Climate seems headed for a new frontier, not seen in more than a million years. Look for continual monthly records, driven by the current extreme planetary energy imbalance. See Climate Dice: mailchi.mp/caa/the-climat…
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Where is our planet headed? Will global temperature rise into the yellow region in 2023 and above it in 2024? Brief discussion at Pipeline paper (draft): mailchi.mp/caa/el-nino-an…

Where is our planet headed? Will global temperature rise into the yellow region in 2023 and above it in 2024? Brief discussion at Pipeline paper (draft): mailchi.mp/caa/el-nino-an…
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Where is our planet headed? Equilibrium warming vs committed warming. Brief discussion at Pipeline paper (draft): mailchi.mp/caa/equilibriu…

Where is our planet headed? Equilibrium warming vs committed warming. Brief discussion at Pipeline paper (draft): mailchi.mp/caa/equilibriu…
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Revised draft paper “Global Warming in the Pipeline” available for comments: mailchi.mp/caa/global-war… It includes analysis of the Cenozoic era, providing many insights. Access the draft paper: columbia.edu/~jeh1/Document…

Revised draft paper “Global Warming in the Pipeline” available for comments: mailchi.mp/caa/global-war… It includes analysis of the Cenozoic era, providing many insights. Access the draft paper: columbia.edu/~jeh1/Document…
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Nature provides us little experiments. Let’s see if we can learn something from this one about our big experiment, and something about our Faustian bargain. Global Temperature in 2022 - mailchi.mp/caa/global-tem…

Nature provides us little experiments. Let’s see if we can learn something from this one about our big experiment, and something about our Faustian bargain. Global Temperature in 2022 - mailchi.mp/caa/global-tem…
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James Edward Hansen(@DrJamesEHansen) 's Twitter Profile Photo

Earth’s energy imbalance is the best diagnostic of where climate is heading. We must keep up the measurements. Twittering is fun (youtu.be/z-OteAgvINc?t=…), but we aim to advance the science. It’s hard and takes time - please read Earth’s Energy Imbalance: mailchi.mp/caa/earths-ene…

Earth’s energy imbalance is the best diagnostic of where climate is heading. We must keep up the measurements. Twittering is fun (youtu.be/z-OteAgvINc?t=…), but we aim to advance the science. It’s hard and takes time - please read Earth’s Energy Imbalance: mailchi.mp/caa/earths-ene…
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