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Posts by Greg Tucker

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Do you want to see the "big picture" on climate change?

Here it is.

Emissions are on the left, and include CO2, CH4, N2O, and f-gases. Natural CO2 sinks (from healthy forests & oceans) are on the right. And carbon removal, what little there is, is on the right, too. All expressed as GWP100.

2 days ago 363 166 15 11
Paul Bierman

Paul Bierman

Cover for the book When the Ice is Gone by Paul Bierman

Cover for the book When the Ice is Gone by Paul Bierman

If you're in Boulder on Wed Apr 15, Paul Bierman (U Vermont) will share from his book When the Ice Is Gone (a New Yorker Best Book). The next day, he'll give a talk: Greenland - Landscapes Under Ice

Wed 12pm book reading SEEC C215
Thurs 12pm science talk SEEC N224

More on Paul www.paulbierman.net

1 week ago 3 1 0 0

It’s a restaurant - Sunset Grill! Had a nice Thanksgiving dinner there a few years back.

1 week ago 1 0 0 0
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Opinion | NASA Flew by the Moon, but Behind the Scenes, Its Science Is a Chaotic Mess

Powerful piece in NYT by former NASA scientist @drkatemarvel.bsky.social
www.nytimes.com/2026/04/08/o...

1 week ago 4 3 0 0
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7 Science Lessons In The Stunning Astronaut’s Earth Photo Our breakdown of 7 hidden science lessons in the stunning photo taken by an astronaut on the Artemis II mission.

On this Easter Sunday and reflecting on humanity, this now iconic picture of Earth from Orion astronaut Reid Wiseman inspired my writing today on 7 hidden science lessons in it and message of hope
www.forbes.com/sites/marsha...

2 weeks ago 31 7 1 2
Signs on overpass read SPEAK UP! DEMOCRACY DIES IN SILENCE.

Signs on overpass read SPEAK UP! DEMOCRACY DIES IN SILENCE.

Signs on overpass read DEMOCRACY DIES IN SILENCE.

Signs on overpass read DEMOCRACY DIES IN SILENCE.

SPEAK UP!
Democracy dies in silence.

@foreverindivisible.bsky.social
@nd2b.bsky.social
@indivisible.org
@indivisible-co.bsky.social

#resist

#BoulderCO

2 weeks ago 15 8 0 1

So well deserved! Congratulations @nicolegasparini.bsky.social
👩‍🔬🧪

2 weeks ago 13 5 1 0
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CSDMS Data Components: data–model integration tools for Earth surface processes modeling Abstract. Progress in better understanding and modeling Earth surface systems requires an ongoing integration of data and numerical models. Advances are currently hampered by technical barriers that i...

I'd like to do a series of posts this week to highlight CSDMS Data Components.

Data Components are software that help connect data sources to numerical models. For more information on the idea behind Data Components and their implementation, see Gan et al. 2024: doi.org/10.5194/gmd-....

4 weeks ago 4 3 1 0

There are a whole bunch of reasons to turn out for #nokings tomorrow but here are maybe the top two:

1) huge turnout is a signal to republicans edging away from Trump and puts steel in Dem spines.

2) least we can do to honor bravery of Minnesotans who turned the tide

3 weeks ago 4850 1249 88 50
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A Time to Rise In anger, in hope, in whatever gets you out the door on Saturday!

It's going to be chilly in the East on Saturday, and hot in the West, so No Kings Day requires that we all do a little extra organizing over the next 48 hours. Text people and tell them where to go!
billmckibben.substack.com/p/a-time-to-...

3 weeks ago 138 34 5 2
Comic. [Small panel overlaying large panel.] PERSON 1: What’s up with this weird landscape? PERSON 2 with ponytail: Oh, it was caused by… [Large panel is map of the United States with with red overlays denoting landscape phenomena. Mega-floods in the northwest, a plate tectonics speedrun on the west coast, volcanoes next to the west coast, water and time in the southwest, geology in the west, a supervolcano within the west, glaciers in the north, farming in the middle, rivers in the mideast, geology in between rivers and farming, ??? toward the northeast, farming on the east coast, continents colliding next to the east coast, ongoing disputes between limestone and water in the south of Florida, volcanoes in Hawaii, geology in Alaska with volcanoes and glaciers below.]

Comic. [Small panel overlaying large panel.] PERSON 1: What’s up with this weird landscape? PERSON 2 with ponytail: Oh, it was caused by… [Large panel is map of the United States with with red overlays denoting landscape phenomena. Mega-floods in the northwest, a plate tectonics speedrun on the west coast, volcanoes next to the west coast, water and time in the southwest, geology in the west, a supervolcano within the west, glaciers in the north, farming in the middle, rivers in the mideast, geology in between rivers and farming, ??? toward the northeast, farming on the east coast, continents colliding next to the east coast, ongoing disputes between limestone and water in the south of Florida, volcanoes in Hawaii, geology in Alaska with volcanoes and glaciers below.]

Landscape Features

xkcd.com/3221/

1 month ago 5155 1005 82 78

Last day for comments on the US government's proposed move to dismantle the National Center for Atmospheric Research (NCAR). The link for submitting comments (the "Dear Colleague Letter") is provided in this article:

boulderreportinglab.org/2026/03/09/n...

1 month ago 3 3 0 0
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The Inspector General for NSF must launch an investigation into the Trump administration’s alleged attempt to sell-off parts of NCAR — immediately!

👇🏽👇🏽👇🏽

1 month ago 205 95 7 5
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NCAR: Serving critical American interests To protect the infrastructure that is critical to U.S. national security and business, we need accurate predictions and early warnings.

From the Grand Junction, Colorado, Daily Sentinel:

www.gjsentinel.com/opinion/colu...

1 month ago 0 0 0 0
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They're taking away the most important weather lab in the US YouTube video by The Weather & Climate Livestream

NCAR is a vital national asset. It would be a tragic and costly mistake to lose it.

www.youtube.com/watch?app=de...

2 months ago 0 1 0 0

Attention folks in the weather, climate, disaster, wildfire, and Earth science communities: NSF has just published a new "Dear Colleague" letter inviting feedback (by Mar 13) on the proposal to dismantle the National Center for Atmospheric Research (NCAR). www.nsf.gov/funding/...

2 months ago 501 416 6 14
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NSF seeks public input on its Fiscal Year (FY) 2026–2030 NSF Strategic Plan

US researchers: Do you think science should be free from political interference? Do you think NCAR is a national treasure that shouldn't be erased at the stroke of a pen? Please consider submitting comments on NSF's Strategic Plan. Deadline is Tue 27 Jan midnight ET.

www.nsf.gov/od/updates/n...

2 months ago 3 3 0 0
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It's a Gas Why are most gases invisible, odourless and tasteless? Why do some poison us and others make us laugh? And why do some power our engines while others make drinks fizzy? In It's a Gas, Mark Miodownik m...

Just finished Mark Miodownik’s wonderful book “It’s a Gas” - highly recommend! @markmiodownik.bsky.social

www.penguin.co.uk/books/312206...

3 months ago 2 0 0 1
NSF building on Eisenhower Av. HUD now owns.

NSF building on Eisenhower Av. HUD now owns.

Destroying the NSF mural in the foyer. Of the Eisenhower building.

Destroying the NSF mural in the foyer. Of the Eisenhower building.

The National Science Foundation sign on our Eisenhower Av building is now gone.

The NSF mural in the foyer is removed and torn off in sheets.

We were supposed to celebrate the 75th anniversary of the agency in May 2025. That never happened.

3 months ago 1872 858 70 66
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Weak Violence, Strong Peace: Who We Are in This Crisis It's getting more extreme out there, especially in Minnesota where the unaccountable army of the Trump regime has, in the wake of its murder, beaten up employees, ripped civilians from their cars, kid...

This may come as a shock to you, but I wrote a thing.
Begins with ICE violence in Minnesota, ends with the Buddhist walk for peace across the Southeast. Discusses the profound weakness of the administration in the middle.

3 months ago 520 145 11 10
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THIN PLACES: CLIMATE CHANGE AND SEEING EARTH WHOLE Published on the winter solstice, 2025 - a thin time for reflection and turning.

I encourage everyone to read this beautiful piece by my friend Lisa Graumlich.

open.substack.com/pub/lisagrau...

3 months ago 44 18 4 3

In the span of four days, we’ve built a coalition of over 80 lawmakers — including several Republicans — to stop the dismantling of NCAR.

I’m grateful to them for their efforts as we work to secure language protecting NCAR in the upcoming CJS appropriations bill.

We will not back down!

👇🏽👇🏽👇🏽

3 months ago 386 110 3 2

#SaveNCAR

4 months ago 13 6 0 0
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From wildfire warnings to flood forecasts, NCAR's research impacts everyone in America.

President Trump's attempt to dismantle it for political vengeance is beyond reckless.

We will fight against this dangerous scheme every step of the way.

4 months ago 338 120 14 2
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Gift link:

www.theatlantic.com/science/2025...

4 months ago 48 36 1 1

NCAR is a crown jewel of US scientific innovation. Dismantling it is utterly crazy. I hope representatives around the country are hearing lots of pushback from their constituents.

4 months ago 33 16 0 2
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A Roomful of Computers: the Prescience of Lewis Fry Richardson In a course I teach on geophysical fluid mechanics, I like show students a video depicting a year of weather on planet earth. The video looks down on a projected map of the world as viewed from space....

Lewis Fry Richardson, often considered the father of numerical weather prediction, turns out to have been a fascinating guy: scientist, Quaker, pacifist, visionary. I wrote a short piece about his legacy:
earthcastings.ghost.io/a-roomful-of...

4 months ago 4 1 0 0
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Excited to share a new paper led by Tamara Aránguiz-Rago, now published in Geophysical Research Letters, exploring how strike-slip faults interact with river systems in dry climates. 🏔️ What’s it… | ... Excited to share a new paper led by Tamara Aránguiz-Rago, now published in Geophysical Research Letters, exploring how strike-slip faults interact with river systems in dry climates. 🏔️ What’s it abo...

www.linkedin.com/posts/benjam... @csdms.bsky.social @gregtucker.bsky.social

5 months ago 3 2 0 0
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Everything You Need to Vote - Vote.org Register to vote. Check your registration status. Get your absentee ballot. Fast, free, easy, secure, nonpartisan.

Election Day is a week from tomorrow, and millions of Americans have a chance to elect important local leaders — judges, council members, school boards, and more — crucial to defending and rebuilding democracy. If you haven’t already, make a plan to cast your vote.

5 months ago 683 359 16 27
A person in a parka walks on a snow field with mountains in the background and clouds.

A person in a parka walks on a snow field with mountains in the background and clouds.

Applications are open for the CIRES Visiting Fellows Program! Two-year fellowships are available for postdocs, and terms of up to 12 months for senior scientists on leave or sabbatical. Learn more: cires.colorado.edu/award-progra... #fellowships #postdoc #sabbatical Photo:@alibanwell.bsky.social

5 months ago 5 3 0 1