Steven Delvaux
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stevendelvaux.bsky.social
Steven Delvaux
@stevendelvaux.bsky.social
Software developer in Belgium. Main interests: science, cryosphere and cycling.
Reposted by Steven Delvaux
Water is being pumped out of Iran's aquifers so aggressively to sustain it's growing agriculture in semi-arid terrain that they can see the land subside from outer space - at rates up to 30-40 cm per year I hear. Iran depends on this unsustainable groundwater abstraction for ~50% of it's supplies.
November 20, 2025 at 7:01 PM
Reposted by Steven Delvaux
New video: A glacier on Antarctica’s Eastern Peninsula experienced the fastest retreat recorded in modern history—in just two months, nearly 50 percent of the glacier disintegrated. Watch this video to understand what happened. Study by @ciresnews #Antarctica #glaciermelt
November 3, 2025 at 8:17 PM
Reposted by Steven Delvaux
Someone on Threads noticed you can type any random sentence into Google, then add “meaning” afterwards, and you’ll get an AI explanation of a famous idiom or phrase you just made up. Here is mine
April 23, 2025 at 10:15 AM
Reposted by Steven Delvaux
Thwaites Glacier calves kilometre-scale icebergs every few weeks. Here's an animation of the process from Sentinel-1. For a longer and higher-resolution version, have a look here: aluckman4.wixsite.com/ade-s-world-...
January 9, 2025 at 3:35 PM
Reposted by Steven Delvaux
Ozone hope? The 2024 ozone hole closer to the historical average in size and duration than the previous years. Does this signal progress towards recovery?
Read the article atmosphere.copernicus.eu/ozone-hope-2...

#CAMS
December 13, 2024 at 1:54 PM
Reposted by Steven Delvaux
thinking of calling this "The Illusion Illusion"

(more examples below)
December 1, 2024 at 2:33 PM
Reposted by Steven Delvaux
"Every year, billions of vehicles worldwide shed an estimated 6 million tonnes of tire fragments. These tiny flakes of plastic, generated by the wear and tear of normal driving, [account] for 28% of microplastics entering the environment globally."

theconversation.com/car-tyres-sh...
Car tyres shed a quarter of all microplastics in the environment – urgent action is needed
Tiny flakes of plastic, generated by the wear and tear of normal driving, eventually accumulate in the soil, in rivers and lakes, and even in our food.
theconversation.com
November 30, 2024 at 2:38 PM
Reposted by Steven Delvaux
The invasive Aesculapian snake, which needs heat, is thriving in the cold, rainy UK. How? 🧪 By finding warmer living environments in compost heaps, attics and walls
Invasive snake is surviving in Britain by living in attics and walls
Britain should be too cold for the invasive Aesculapian snake to survive, but it is thriving by exploiting the warmth of attics, wall cavities and compost heaps
www.newscientist.com
October 17, 2024 at 5:09 PM
Reposted by Steven Delvaux
Fall colors are not just pretty. They are an evolved series of metabolic actions to conserve nitrogen and other nutrients. Breaking down chlorophyll to export N exposes the living leaf cells to sun damage. Red and yellow pigments serve to protect the leaf cells from bleaching by the sun.
September 16, 2024 at 3:17 PM
Reposted by Steven Delvaux
This is my first try posting a video here, made from AMSR2 data using ezgif and ffmpeg. The animation covers the period from August 1, 2024 to present.

It shows that although the sea ice has moved away, the giant iceberg A23a continues to spin, trapped in a Taylor column above a seamount.
🌊🧪⚒️
September 13, 2024 at 9:26 AM
Reposted by Steven Delvaux
"Two wheelers like e-bikes and electric mopeds] are actually displacing four times as much demand for oil as all the world’s electric cars at present, due to their staggering uptake in China and other nations where mopeds are a common form of transport" theconversation.com/the-worlds-2...
The world's 280 million electric bikes and mopeds are cutting demand for oil far more than electric ...
Electric vehicles get all the press – but it’s the smaller unsung two wheelers cutting oil demand the most.
theconversation.com
November 17, 2023 at 8:51 PM
Reposted by Steven Delvaux
Great chart showing the meteoric recent rise of Chinese car exports – set to overtake falling imports in 2023 – in a Nikkei Asia big read on BYD

asia.nikkei.com/Spotlight/Th...
November 10, 2023 at 11:57 AM
Sea ice thickness according to the PIOMAS model

sites.google.com/view/arctic-...
November 3, 2023 at 5:21 PM
Arctic sea ice has been drifting toward Fram Strait again in the last two months. It's a concern that the thickest ice may drift out of the Arctic Ocean toward lower latitudes where it will easily melt.
October 29, 2023 at 9:57 AM
Arctic sea ice thickness according to the CryoSat-SMOS merged sea ice thickness product:
sites.google.com/view/arctic-...
October 28, 2023 at 7:38 AM