Dr. William J. Ripple

Find me at Blue Sky Professor of Ecology-Oregon State University
Co-Lead author "The 2024 State of the Climate Report"

[Dr. William J. Ripple @WilliamJRipple]

The Scientist's Warning is a film about a researcher who started a movement of scientists to turn knowledge into action- a story of scientists all over the world awakening to the need to become advocates for the fate of the planet & humanity.
https://t.co/70YWttllFn via @YouTube

[Dr. William J. Ripple @WilliamJRipple]

In our Climate Report my coauthors and I say: We are hurtling toward climate chaos. The planet's vital signs are flashing red. Consequences of human-driven alterations of the climate are no longer future threats but are here now. Read report here https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

The Guardian just published a story on our paper "The Risk of a Hothouse Earth Trajectory" regarding a potential point of no return. You can read it for free here:
https://t.co/LFCCApwCJ4

[Dr. William J. Ripple @WilliamJRipple]

The Guardian just published a story on our paper "The Risk of a Hothouse Earth Trajectory" regarding a potential point of no return. You can read it for free here:
https://t.co/LFCCApwCJ4

[Dr. William J. Ripple @WilliamJRipple]

In our Climate Report my coauthors and I say: We are hurtling toward climate chaos. The planet's vital signs are flashing red. Consequences of human-driven alterations of the climate are no longer future threats but are here now. Read report here https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

SETTING: SOMETIME IN THE FUTURE: We were hurtling towards climate chaos which ended up really hurting the economy. More info here: https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

MELTING ICE: We wrote in our 2025 State of the Climate report that "We are hurtling toward climate chaos. The planet's vital signs are flashing red." https://t.co/x7G4sp3ZUK

[chris keefer @Dr_Keefer]

Incredibly powerful time-lapse. How short our lives and ability to perceive change are.

[Dr. William J. Ripple @WilliamJRipple]

In our Climate Report my coauthors and I say: We are hurtling toward climate chaos. The planet's vital signs are flashing red. Consequences of human-driven alterations of the climate are no longer future threats but are here now. Read report here https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

We recently published a report that serves as a warning to humanity that we are hurtling towards climate chaos. See report here: https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

And we warned them with our new 2025 State of the Climate Report which you can check out here: https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

You might turn off the tap and also read our new 2025 State of the Climate Report here where we wrote "We are hurtling toward climate chaos. The planet's vital signs are flashing red" https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

Check out our new State of the Climate report which shows 22 of Earth's 34 vital signs are at record highs https://t.co/x7G4sp3ZUK https://t.co/wB6CPo3ScX via @DailyMail

[Dr. William J. Ripple @WilliamJRipple]

We just published a report that serves as a warning to humanity that we are hurtling towards climate chaos. More info here: https://t.co/x7G4sp3ZUK and here https://t.co/E23RK3fzXU

[Dr. William J. Ripple @WilliamJRipple]

In our Climate Report my coauthors and I say: We are hurtling toward climate chaos. The planet's vital signs are flashing red. Consequences of human-driven alterations of the climate are no longer future threats but are here now. Read report here https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

As we alarmingly wrote "We are hurtling toward climate chaos" in our new State of the Climate Report which just came out. We may be on the path of a hothouse trajectory as shown in this figure. Read the full report: https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

Our 2025 State of the Climate Report was just published in BioScience by scientists from around the world with an alarming message. This video (2 minutes) shows the key highlights: https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

In our new BioScience 2025 State of the Climate Report, we penned we are hurtling toward climate chaos. @ECOWARRIORSS @climatehuman @billmckibben @licypriyak @naomiaklein @cfigueres @climatemorgan
Read report here: https://t.co/x7G4sp3ZUK

[Prof. Eliot Jacobson @EliotJacobson]

The amazing research article "The 2025 state of the climate report: a planet on the brink" isn't getting enough notice, so I made a little video with the summary of key findings from the paper.

If it's too fast at times, just pause and read.

https://t.co/1d5YkvKzVL

[Dr. William J. Ripple @WilliamJRipple]

You can read our new 2023 State of the Climate report here for free: https://t.co/x7G4sp3ZUK

[Dr. William J. Ripple @WilliamJRipple]

We are hurtling toward climate chaos. Planet's vital signs are flashing red. Consequences of human-driven alterations of the climate are no longer future threats but are here now. @michaelman @peterclick Read our full new State of the Climate report here: https://t.co/x7G4sp3s5c

[Dr. William J. Ripple @WilliamJRipple]

Defaunation........
https://t.co/jjgFjpzy0b