Ed Hawkins
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edhawkins.org
Ed Hawkins
@edhawkins.org

Climate scientist at the National Centre for Atmospheric Science, University of Reading | IPCC AR6 Lead Author | MBE | Views own | https://edhawkins.org

Warming Stripes: http://www.ShowYourStripes.info

Edward Hawkins is a British climate scientist who is Professor of climate science at the University of Reading, principal research scientist at the National Centre for Atmospheric Science (NCAS), editor of Climate Lab Book blog and lead scientist for the Weather Rescue citizen science project. He is known for his data visualizations of climate change for the general public such as warming stripes and climate spirals. .. more

Environmental science 47%
Geology 18%
Pinned
Putting the hot & dry summer of 1976 into context

50 years after the extreme summer for the UK and Ireland, what can we still learn?

climatelabbook.substack.com/p/the-summer...

(And, yes, a previous version of this graphic used a 1.5°C option, but that is essentially impossible at this point.)

Which option do we choose - act or delay?

These are the 'warning' stripes highlighting global choices. Do we act rapidly and keep global temperatures below 2°C, or delay and end up in a 3°C world (or worse)?

Excellent report - thanks. Was trying to access the updates, but (for me) the data files linked from your website still seem to be from last month? e.g. storage.googleapis.com/berkeley-ear...

You’re right - will fix this!
Global mean temperature 2025: 1.44 ± 0.13 °C above the 1850-1900 average, based on a synthesis of eight international datasets.

2025 was the second or third warmest year on record. 2024 remains the warmest.

That makes the past 3 years are the 3 warmest years on record.

wmo.int/news/media-c...
WMO confirms 2025 was one of warmest years on record
wmo.int
176 tiny maps (1850-2025)

Maps of temperature anomalies for each year. The progression to warmer, redder colours is evident over virtually the entire planet.

This 'small multiples' #dataviz approach is effective to show that nowhere is escaping from the warming due to us burning fossil fuels.
Spiralling global temperatures (1850-2025)

The last 3 years really jump out, rather like 2015-6 did when we first produced this graphic back then. Now, 2015-6 looks rather cool...

More on the spiral: doi.org/10.1175/BAMS...
As the climate data for 2025 continues to be released, it's time to update various data visualisations.

First - the global climate stripes for 1850-2025. A third darkest red stripe is added.

The last 11 years have been the warmest 11 years on record. A sequence that is unlikely to be broken soon.
Most 2025 global temperatures are now out (degrees C above 1850-1900 baseline)

1.41 HadCRUT5
1.44 Berkeley
1.46 JRA-3Q
1.47 Copernicus
1.53 DCENT-I

NOAA and NASA GISS values will be public at 2pm UK time and but based on already public Jan-Nov data they will likely be between 1.3 and 1.4 degC.

Reposted by Ed Hawkins

2025 adds another dark red stripe to the climate stripes

New data confirms Earth’s third-warmest year on record, and 11th warmest year in a row.

Created by Prof Ed Hawkins, the 2025 stripes reflect a century of climate science and provide a clear call for climate action.

👉 https://rdg.ac/4sGfjPX
2025 global climate highlights are out:
🌡️ 2025 was 3rd warmest year on record, 1.47ºC above the preindustrial level
📈 2023-2025 is the first three year period above 1.5ºC (according to ERA5)
🌍 The last 11 years have been the warmest 11 years on record

See: climate.copernicus.eu/global-clima...

⚒️🧪🌊

Yes - Japan has also seen some rather extreme years: showyourstripes.info/c/asia/japan...
Show Your Stripes
Visualising how the climate has changed for every country across the globe
showyourstripes.info

Up to 2024, yes: showyourstripes.info/c/asia/china...

We await the complete country level data for 2025 which will come from @berkeleyearth.org in due course. NOAA released the USA data today allowing the update. Latest version for the UK also coming tomorrow.
Show Your Stripes
Visualising how the climate has changed for every country across the globe
showyourstripes.info

In 2025 Utah and Nevada both broke their annual average temperature records. For Utah, the previous record was from the extreme dust bowl year of 1934.

2025 was the fourth warmest year on record for the USA

www.ncei.noaa.gov/news/nationa...

Reposted by Ed Hawkins

“Many of 2025’s heat-related records are, of course, likely to be broken again soon.”

We spoke to @edhawkins.org about 2025 being the UK’s warmest year on record, and about the causal chain for changes in climate.

ncas.ac.uk/in-conversat...
In conversation with Professor Ed Hawkins: UK’s warmest year - NCAS
We spoke to climate scientist Ed Hawkins about 2025 being the UK’s warmest year on record.
ncas.ac.uk
🧵A political/media guide to the "truth" about net-zero

1) Add up costs to install & run a net-zero energy system
2) Pretend fossil-fuelled alternatives wld be free
3) Do say "eco zealots are bankrupting us"
4) Don't say "free cars if we scrap net-zero" cos it sounds ridiculous
5) That's it!

1/10

Reposted by Ed Hawkins

For example, follow Storm Goretti’s forecast track, arriving over southern UK tomorrow evening…

Reposted by Benjamin I. Cook

Nullschool weather app for mobile phones...!
I'm excited to announce the official Nullschool app is here!

earth.nullschool.net on mobile browsers works fine, but the app is nicer. Full screen display, persistence across sessions, text size that matches device settings. Even landscape works well.

And, like the website: no ads!

Links below ⬇️
I'm excited to announce the official Nullschool app is here!

earth.nullschool.net on mobile browsers works fine, but the app is nicer. Full screen display, persistence across sessions, text size that matches device settings. Even landscape works well.

And, like the website: no ads!

Links below ⬇️
Open full Professor position in beautiful Scotland…
Fancy working somewhere with views like this less than a 10 min walk from your office?

Are you an outstanding scholar of international standing within the field of Earth and environmental sciences?

This could be the job for you: www.vacancies.st-andrews.ac.uk/Vacancies/I/...

Reposted by Ed Hawkins

Yes, or that we are lucky with our spatial sampling of observation locations!

There is a figure in the Supp Info showing the bias but that doesn’t seem to be available at the moment…

Yes, Tambora, Laki, and a large unknown eruption in 1808/9.

Thanks Kevin. It is the right thing to do, but we were actually quite surprised at the size of the differences between masked and unmasked. The coverage sampling bias was relatively small for most of the record.