Scott Denning’s Tweets

Oct 30, 2020

Stop setting carbon on fire 🔥!

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NOVA | PBS

@novapbs

· Oct 30, 2020

This visualization uses Washington D.C.'s National Mall to show the scale of human coal consumption—and how much CO2 it adds to our atmosphere. Stream "Can We Cool the Planet?" online or on the @PBS Video app now: to.pbs.org/3dU5zvj

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Ken Caldeira

@KenCaldeira

Jul 30

Are you old enough to remember when the global warming "hiatus" was offered as a reason to reject climate science? earthobservatory.nasa.gov/images/149321/ en.wikipedia.org/wiki/Global_wa

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Dr. Robert Rohde

@RARohde

Jul 28

I made this some years ago, but it is still kind of fun. This is a map of 45,000 current & historical weather stations that have reported temperature data. There are no political or geographic markers on the map, but it is still easy to identify land masses and some countries.

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is reportedly walking away from the energy package he helped craft over the past 6 months. If

@SenateDems

pass a FY22 budget bill without this energy package, it'll do enormous damage to the industries & communities Sen. Manchin says he cares about. Here's how.🧵

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Prof Michael E. Mann

@MichaelEMann

Jul 19

An army of climate denier bots & trolls have been released to deflect attention from the unprecedented climate change-fueled extreme weather we're witnessing. If you encounter, report first. Then block. Don't engage!

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How not to solve the climate change problem

Jul 20

🔥🛑STOP SETTING CARBON ON FIRE!!🛑🔥

theconversation.com

With President Biden expected to announce new climate plans today, a climate scientist looks at what works and some popular ideas that aren’t as cheap or effective as people hope.

Topics to follow

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Prof. Katharine Hayhoe

@KHayhoe

Jul 19

I see this debate every day so I'm sharing this again!

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Prof. Katharine Hayhoe

@KHayhoe

· Jun 19

To the endless debate between whether we need individual or systemic climate action, my answer is … YES. What is a system made of, other than individuals? And how does a system change, other than by individuals calling for and advocating for and making that change happen?

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Opinion | What Joe Manchin Cost Us

Dr. Leah Stokes

@leahstokes

Jul 16

Hold your children close tonight. Leave some water out for the birds. And make a plan to rip out your gas furnace. The climate crisis is getting worse, and thanks to Manchin, Congress is one vote short of saving us. We’re going to have to save ourselves.

nytimes.com

The senator’s legacy will be climate destruction.

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Marshall Shepherd

@DrShepherd2013

Jul 16

Heatwaves should not be covered with kids eating ice cream or romping around in fountains. Cover extreme heat as a threat not a vacation. We don't cover the approach of a hurricane as great potential kite flying weather

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We need to draw down carbon—not just stop emitting it

Zeke Hausfather

@hausfath

Jul 5

The IPCC calls CDR an "essential element" to meet ambitious climate targets. At the same time, there is a real risk it can be misused to delay needed mitigation. In

@techreview

@JaneAFlegal

and I discuss navigating the moral hazard risk of CDR: technologyreview.com/2022/07/05/105 1/

technologyreview.com

Carbon removal is no substitute for reducing climate pollution. But it is now a necessary tool to keep temperatures in check.

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The Fireworks Galaxy is obscured behind dark dust in our own galaxy. Carbonaceous crud scatters blue light but passes the red & orange, making the galaxy appear ruddy like a sunset. 25 million years ago over my burb. 11 hours exposure @ FL=2103 mm. LRGB and Ha combined

Zeke Hausfather

@hausfath

Jun 16

The relationship between CO2 emissions and global temperature in a nutshell: Rising emissions -> accelerating warming Flat emissions -> continued warming Zero emissions -> stopping warming Below-zero (net-negative) emissions -> cooling

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Phil Ritz USA

@philritz1

Jun 15

50 mpg cars fight energy shocks 20 mpg cars + expensive gas = inflation Our cars have Soviet era gas mileage

Prof. Katharine Hayhoe

@KHayhoe

Jun 16

Climate action in 3 steps: 1. Reduce everything we can, as much as we can, first. 2. Offset the rest (which is impossible to do if we don't reduce everything we can first). 3. Build resilience to the impacts we can no longer avoid. Why? Because the only other choice is suffering.

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Dr. Jonathan Foley

@GlobalEcoGuy

Jun 14

We know that climate change can present "threat multipliers" -- where changes in climate make bad things worse. More disruptions, more insecurity, more suffering. But can climate solutions give us "benefit multipliers"? YES, they can.

gave a great energetic talk about investing and changing our infrastructure to improve the climate. Finishing with the methane dance was classic!

Jun 14

Teaching a climate communication short course to weather broadcasters this afternoon #amsbroadcast

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Jun 13

Burning coal, oil, and gas is like hitting ourselves over and over again with a hammer. It will feel so good when we stop!

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Kevin Pluck

@kevpluck

Jun 13

CO₂ concentration is accelerating.

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Replying to

Saharan dust plumes are pretty common this time of year. See a nice explainer here, from

A massive Saharan dust plume is moving into the southeast US, bringing technicolor sunsets and...

@ConversationUS

theconversation.com

From June through October, it’s not unusual for huge Saharan dust plumes to blow across the Atlantic. They can darken skies but also bring calmer weather and electric sunsets. Here’s how they form.

Luke Wyeth

@lukewyeth

Jun 11

Most people are surprised to learn that most of this land is used to raise and feed animals. Roughly 75% of the world’s agricultural land is used for grazing animals or producing animal feed. #GoVegan

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Dr. Jonathan Foley

@GlobalEcoGuy

· Jun 11

Agriculture has disrupted the planet more than anything we have ever done, including burning fossil fuels. A sustainable future depends on recognizing this fact — and radically changing the way we farm and eat. globalecoguy.org/food-farming-a

India isn’t ready for a deadly combination of heat and humidity

Jun 11

Heat and humidity: deadly combination advances as the world heats up

arstechnica.com

Recent heat wave has seen “wet-bulb” temperatures rise to potentially fatal levels.

yaleclimateconnections.org

Jun 9

My essay on what to do about the kids not being alright

Young people care about things that matter » Yale Climate Connections

In response to ‘The kids are not OK,’ a three Ss approach to addressing climate change: Simple, Serious, and Solvable.

yaleclimateconnections.org

Jun 9

YOUNG PEOPLE CARE ABOUT THINGS THAT MATTER. "What do we say to the god of death?" "NOT TODAY!"

Young people care about things that matter » Yale Climate Connections

In response to ‘The kids are not OK,’ a three Ss approach to addressing climate change: Simple, Serious, and Solvable.

Climate change is all about power. You have more than you think.

Jun 9

YES! Making the world better isn't about consumer guilt. and aspiring to abstinence. It's about GOING TO WORK as an AGENT of change!

vox.com

Think less like a consumer and more like an activist.

Stop telling kids that climate change will destroy their world

Jun 8

Climate scientists have a responsibility to push back against misinformation about hopelessness rooted in ignorance and despair!

vox.com

Some "climate anxiety" is the product of telling kids — falsely — that they have no future.

Opinion | Your Kids Are Not Doomed

Zeke Hausfather

@hausfath

Jun 5

“I unequivocally reject, scientifically and personally, the notion that children are somehow doomed to an unhappy life”. The great

@DrKateMarvel

@ezraklein

's new column (also feat.

@leahstokes

@dwallacewells

, and me):

nytimes.com

The green future has to be a welcoming one, even a thrilling one.

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Jun 2

Globular cluster M92, containing hundreds of thousands of extremely old stars. Red Giants! Blue Stragglers! Just last night & also 26,700 years ago, around the time of the Paleolithic cave paintings of southern France. A galactic remnant from ~ 11.5 billion years ago.

Replying to

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It's hard to imagine that humans have roughly tripled the Nitrogen-fixation over land. When high temperature combustion (of fossil fuels) decreases, this must have significant impact on the terrestrial Carbon sink.

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Leon Simons

@LeonSimons8

· Mar 29

Replying to @ClimateOfGavin

Anthropogenic Nitrogen fixation is with 190 Tg N/yr almost double the natural terrestrial N-fixation at 84 Tg N/yr (with large uncertainties). agupubs.onlinelibrary.wiley.com/doi/pdf/10.100 #NitrogenTuesday

Prof. Katharine Hayhoe and 3 others

Going to

? Register today for this in-person Short Course on communicating #climatechange. The course will be held on Tuesday, June 14. Deadline to register is 9 June. #AMS49BC #AMS6WxComm Register at: ametsoc.org/ShortCoursesCl

The biggest energy problem in the world right now is massive price spikes for #unreliable #FossilFuels because a whole continent foolishly bet on the goodwill of

@AlexEpstein

's hero, a fascist dictator. Coal, oil, and gas impoverish everybody #PutinWarCriminal #Inflation

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Zack Labe

@ZLabe

It's the end of another month, so it's time for a reminder using this graph... The running means are computed through April 2022 showing global climate variability (bumps) & forced long-term warming (trend ➡️ human-caused climate change). + Graph by columbia.edu/~mhs119/Temper

Line graph time series of global surface temperature anomalies relative to 1880 to 1920 using NASA GISTEMPv4 data. Data is shown using a 12-month running mean, 132-month running mean, January to December means, and a linear fit over the 1970 to 2015 period. This linear trend is approximately 0.18°C per decade. The graph shows long-term warming, especially after 1960.

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David Roberts

@drvolts

A great snapshot of the global electric vehicle market from

@BloombergNEF

. The incredible level of action in the 2- and 3-seater sector is really under-appreciated, especially here in the US. That's the sector displacing the most oil! about.bnef.com/electric-vehic

China Briefing, 5 May 2022: ‘Gigantic’ wind and solar bases; Coal capacity ‘surge’; Loans for...

Replying to

and

With china installing: 90 GW solar in 2022 - bloomberg.com/news/articles/ 100GW of Battery AND 120 GW of pumped hydro storage by 2030 - energy-storage.news/china-targets- and 570 GW of wind by 2025 - carbonbrief.org/china-briefing Those coal curves will not be going up again, ever.

carbonbrief.org

China plans to build “gigantic” wind and solar power “bases”. What are the implications for the country’s carbon-peaking and carbon neutrality goals.

David Roberts

@drvolts

Could an obscure provision of a Coast Guard bill threaten offshore wind energy?

An obscure provision in the Coast Guard authorization bill would cripple the offshore wind industry (the same way the Commerce investigation is crippling solar). IMO we should stop crippling industries key to a livable future.

news.yahoo.com

A bill that passed the House of Representatives in late March and is currently under consideration in the Senate could “cripple the development of the American offshore wind industry,” according to...

Prof Michael E. Mann

@MichaelEMann

This New Style of Climate Denial Will Make You Wish the Bad Old Days Were Back

This new book by fossil fuel apologist Alex Epstein is a textbook example of #NewClimateWar (publicaffairsbooks.com/titles/michael) soft denial. Via

@PeterGleick

@Slate

slate.com

The bizarre claim that what we need, right now, is more fossil fuels.

Fossil CO2 will persist for centuries and perhaps many millennia after emissions cease.

Carbon sinks in both land and oceans are threatened by warming and are likely to weaken or even reverse as emissions fall with the potential for amplification of climate change due to the release of previously stored carbon.

Land carbon sinks include (a) CO2 fertilization, (b) nitrogen fertilization, (c) forest regrowth following agricultural abandonment, and (d) boreal warming.