Leah Goldfarb

China’s clean-energy revolution will reshape markets and politics The world’s biggest manufacturer now has an interest in the world decarbonising

The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."

Record leap in CO2 fuels fears of accelerating global heating CO2 in air hit new high last year, with scientists concerned natural land and ocean carbon sinks are weakening

Record leap in CO2 fuels fears of accelerating global heating

- CO2 in the air hit new high last year, with scientists concerned natural land and ocean carbon sinks are weakening
@wmo-global.bsky.social

#climatecrisis
Story by me
www.theguardian.com/environment/...

Red line graph time series of monthly carbon dioxide abundance from January 1959 through June 2025. There is a seasonal cycle and long-term increasing trend. Current levels of CO2 are at 430 ppm. This is the Keeling Curve graph. A line for CO2 10 years ago is also annotated.

Carbon dioxide (CO₂) averaged about 430 ppm in June 2025

10 years ago June averaged about 403 ppm

Preliminary data from @noaa.gov: gml.noaa.gov/ccgg/trends/

Indicators of Global Climate Change 2024: annual update of key indicators of the state of the climate system and human influence Abstract. In a rapidly changing climate, evidence-based decision-making benefits from up-to-date and timely information. Here we compile monitoring datasets (published at https://doi.org/10.5281/zenodo.15639576; Smith et al., 2025a) to produce updated estimates for key indicators of the state of the climate system: net emissions of greenhouse gases and short-lived climate forcers, greenhouse gas concentrations, radiative forcing, the Earth's energy imbalance, surface temperature changes, warming attributed to human activities, the remaining carbon budget, and estimates of global temperature extremes. This year, we additionally include indicators for sea-level rise and land precipitation change. We follow methods as closely as possible to those used in the IPCC Sixth Assessment Report (AR6) Working Group One report. The indicators show that human activities are increasing the Earth's energy imbalance and driving faster sea-level rise compared to the AR6 assessment. For the 2015–2024 decade average, observed warming relative to 1850–1900 was 1.24 [1.11 to 1.35] °C, of which 1.22 [1.0 to 1.5] °C was human-induced. The 2024-observed best estimate of global surface temperature (1.52 °C) is well above the best estimate of human-caused warming (1.36 °C). However, the 2024 observed warming can still be regarded as a typical year, considering the human-induced warming level and the state of internal variability associated with the phase of El Niño and Atlantic variability. Human-induced warming has been increasing at a rate that is unprecedented in the instrumental record, reaching 0.27 [0.2–0.4] °C per decade over 2015–2024. This high rate of warming is caused by a combination of greenhouse gas emissions being at an all-time high of 53.6±5.2 Gt CO2e yr−1 over the last decade (2014–2023), as well as reductions in the strength of aerosol cooling. Despite this, there is evidence that the rate of increase in CO2 emissions over the last decade has slowed compared to the 2000s, and depending on societal choices, a continued series of these annual updates over the critical 2020s decade could track decreases or increases in the rate of the climatic changes presented here.

Our new paper updating key metrics in the IPCC is now out, and the news is grim:

⬆️ Human induced warming now at 1.36C
⬆️ Rate of warming now 0.27C / decade
⬆️ Sharp increase in Earth's energy imbalance
⬇️ Remaining 1.5C carbon budget only 130 GtCO2

essd.copernicus.org/...

A line graph depicting cumulative grant funding by the National Science Foundation from 1990 to 2025, with funding amounts on the vertical axis and timeline indicators on the horizontal axis. The graph highlights funding trends over the years, with a specific emphasis on Biden’s term and this year (which is the lowest).

Here’s how Trump’s war on science is going. NSF funding is at the lowest level in decades. We’ll lose knowledge, generations of scientists, and US competitiveness.

www.nytimes.com/interactive/...

It was so great seeing you! Congrats on your certification!

🚨 Yup.

Art of the Deal 💀🤯

💯

🎉 Thrilled to be selected as a mentor for the upcoming @theclimatereality.bsky.social training in Paris this March.

News: Half of CDC "disease detectives" terminated. DOGE takes aim at US disease surveillance. Entire first-year class of the Epidemic Intelligence Service must be out by 5 p.m., sources say. Also: a major CDC contractor "just let go," and others may follow.

Major news:

Entire first-year class of the Epidemic Intelligence Service must be out by 5pm, sources say.

Also: a major CDC contractor "just let go." Others may follow.

This is an attack on our ability to detect outbreaks.

More, with quotes from CDC officials:
open.substack.com/pub/insideme...

Extrême droite, médias, youtubeurs : qui sont les faussaires du climat ? Tandis que Trump s’en prend aux régulations scientifiques, un « climatoscepticisme 2.0 » se développe en Europe. Il ne remet pas forcément en cause le dérèglement climatique mais instille le...

[#ÀlairLibre 📺] Extrême droite, médias, youtubeurs: qui sont les faussaires du climat?

Par À l’air libre

Spot on.

Human and nature dynamics (HANDY): Modeling inequality and use of resources in the collapse or sustainability of societies There are widespread concerns that current trends in resource-use are unsustainable, but possibilities of overshoot/collapse remain controversial. Col…

This ten year old paper by my friend & colleague Eugenia Kalnay and colleagues modeling the combined effects of environmental degradation and wealth disparity on societal stability didn't get much attention at the time. It feels especially relevant now: www.sciencedirect.com/science/arti...

Temperatures at north pole 20C above average and beyond ice melting point Scientists say unusually mild temperatures linked to low-pressure system over Iceland directing strong flow of warm air towards north pole

Temperatures at north pole 20C above average and beyond ice melting point
www.theguardian.com/environment/...

LinkedIn post: On January 24th I formally resigned from my position with the Centers for Disease Control and Prevention (CDC). I started at CDC in 2010, and I have spent 20 years in public service, including my 15 years in service at the federal level. Here is a little bit of what I wrote in my resignation, because I'm not sure that anyone is actually going to read it. "I feel honored to be among the public health professionals that have had the privilege to work at CDC. As I reflect on my own experiences and accomplishments during my time here, I am humbled by the magnitude and the importance of our work. To my colleagues: we have worked together through chaos and uncertainty, transition, reorganization, preparation, and response. You are the most selfless, dedicated, and passionate people I know. I have watched you work around the clock, take additional details, deployments, and responsibilities, try to balance work and family, forego self-care, and keep pushing and work together to protect the public’s health. I’ve seen your sacrifice. I want you to know that your support and guidance has been invaluable, and I am proud of the work we have accomplished together." While I was backing up files I found my oath that I signed in 2010. I believe in our work, and I am sad to be leaving federal service. But I have immense gratitude for all of the opportunities that I've had and the connections that I've made. I will continue to protect the public's health in a different capacity (stay tuned...) but for now, thank you for trusting me.

The policy lead for CDC's H5N1 response has abruptly resigned.

Sources tell me CDC's response to the bird flu pandemic has been severely hobbled by the chaos of the past two weeks.

Map showing each country's status under the Paris Agreement. 193 countries have fully signed and ratified the Agreement.

Trump again withdraws the United States from the Paris Climate Agreement, joining an exclusive club with Iran, Libya, and Yemen.

Withdrawal formally takes effect one year after receipt by the UN.

I like your energy too!

FYI, I tried to use the hashtags above on Instagram, but for some reason, that post was not made public. 🤔 So much for free speech. I am just done with these three platforms -- it is not even worth my time to try again.

Happy 45^2!

#GreatMetaWalkoff, #GreatTwitterWalkoff, #GreatXWalkoff

(PDF) Misinformation and Disinformation in the Era of Social Media: The Need for Fact-Checking Skills PDF | The paper explores the need for fact-checking skills in the era of misinformation and disinformation on social media. This paper employs a... | Find, read and cite all the research you need on R...

On 20 Jan, I will be leaving X, Facebook, and Instagram. I can no longer “be the product” for these “free” platforms that allow scientific facts to be disputed – spreading misinformation like a virus. I'll miss my friends there ♥️, but it's time for a change.

More info here:
shorturl.at/8u4nq

☀️🌪️The EU generated a RECORD 30% of electricity from wind and solar in the first half of 2024, for the first time surpassing fossil fuels’ share of 27%

🔗Read more electricity highlights from 2024: ember-energy.org/lat...

Supreme Court declines to hear challenge to California’s strict vehicle emissions rules | CNN Politics The Supreme Court declined Monday to take up an appeal from conservative states challenging California’s ability to establish strict vehicle emission rules that effectively set the standard for the re...

US Supreme Court declines to hear challenge to California's right to set own vehicle emis standards for CO2
www.cnn.com/2024/12/16/p...

CA's waiver to control CO2 granted by EPA based on my 2009 EPA testimony that CO2 affects local health in already-polluted cities
web.stanford.edu/group/efmh/j...

Indeed, I too struggled with this for years and then I found….SPYX.

Sadly not a @theonion.com headline. #vaccineswork

Wow. Wonder what this means for Europe — probably the same.

Arctic Tundra Has Long Helped Cool Earth. Now, It’s Fueling Warming. Wildfires and thawing permafrost are causing the region to release more carbon dioxide than its plants remove, probably for the first time in thousands of years.

The thawing Arctic tundra is now adding more carbon dioxide to the atmosphere than it has removed, a reversal from the usual state of affairs since the peak of the last ice age.

This is a fascinating review article on nature-based solutions. I'm surprised it didn't get more attention when it was released (March 2024), especially Figure 1, which highlights high-confidence, high-impact projects in the upper right. #nbs, #climatechange, #nature, #naturebasedsolutions

The world’s 280 million electric bikes and mopeds are cutting demand for oil far more than electric cars Electric vehicles get all the press – but it’s the smaller unsung two wheelers cutting oil demand the most.

The world’s 280 million electric bikes and mopeds are cutting demand for oil 4x more than electric cars due to their staggering uptake in China and elsewhere.

Climate Reality Paris Training Learn how you can make a just clean energy future a reality by joining the Climate Reality Leadership Corps Paris training with former US Vice President Al Gore.

Ten years after the Paris Agreement, Al Gore and @climatereality.bsky.social is coming to Paris 28 - 30 March 2025 to train the next cohort of Climate Leaders. Apply here and see the stellar line-up ⤵️
www.climaterealityproject.org/paris

In 2013, I did this training and can highly recommend it.