Maritime Sea

Maritime Daily

One original post a day on maritime climate awareness and change — ocean warming, sea-level rise, coastal erosion, shipping and the sea's effect on weather. Written in plain language, with a credited photo and a full list of sources on every post. Awareness only: no project data, no unverified local figures.

Daily series

Latest maritime posts

Newest first. Each post is also listed in the main Blog.

2026-11-01 · 5 min read

Ocean Acidification Has Crossed a Planetary Boundary

A 2025 study finds the global ocean crossed its acidification boundary in 2020, with 40% of surface waters and 60% of subsurface waters compromised — and tropical coral reefs have already lost an estimated 43% of their suitable habitat.

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2026-10-31 · 6 min read

An Oil Slick off the UAE Coast — and What It Teaches Us About the Sea

The UAE has stopped the GEM NO. 2 oil leak off Umm Al Quwain, but stopping the leak is only the first of four jobs. How satellite tracking, mechanical recovery and beach closures work — and why spill readiness matters for Karachi's coast.

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2026-10-31 · 5 min read

Antarctica's Melting Sea Ice Has Reversed the Ocean's Freshwater Engine

A new Nature Climate Change study finds Antarctic Intermediate Water has flipped from freshening to getting saltier, denser and deeper since 2016 — and 2026's third-lowest winter sea-ice maximum shows the pattern continuing.

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2026-10-30 · 6 min read

How Do We Reduce Oil Slick Pollution? 7 Cleanup Methods - and the Prevention That Matters Most

An oil slick is the film on your tea, at the scale of an ocean - and once it spreads, no single tool removes it. Here are the seven main cleanup methods, what each one actually does, and the prevention that has already cut tanker spills more than sixteenfold.

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2026-10-30 · 4 min read

When the Rain Carries the City's Garbage to the Sea: Colombia's Trash Flood

Heavy rain washed a city's garbage through its rivers and out to sea, where it floated on the surface. It was not an oil spill. It was the other way the sea gets polluted, and it starts on land.

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2026-10-30 · 5 min read

Shipping's CO2 Fell in 2025 — But the Hard Decision Is Still Ahead

Verified IMO data shows global shipping cut CO2 by 1.3% in 2025 despite a bigger fleet sailing further. What drove the fall, and what December's MEPC 85 meeting must decide about the Net-Zero Framework.

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2026-10-29 · 4 min read

COP31 and the “Blue COP”: Why the Ocean Is Finally at the Centre of Climate Talks

COP31 opens in Antalya on 9 November 2026, and 150+ leaders and scientists want it remembered as the “Blue COP” — the conference where the ocean moved to the centre of climate policy. What they are asking for, the finance gap behind it, and what to watch.

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2026-10-28 · 5 min read

Arctic Sea Ice Hits Its 2026 Low — and Why Less Ice Does Not Mean Easier Sailing

On 12 September 2026, Arctic sea ice shrank to 4.60 million square kilometres — tied for the tenth-lowest minimum in the satellite record. Less ice is not open water, and 2026 is also the year the IMO's Polar Code reached smaller ships. What the numbers say, and what changed for polar shipping.

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2026-10-27 · 4 min read

Marine Heatwaves: Why the Ocean Keeps Breaking Heat Records

In September 2026, 42% of the world's ocean sat in a marine heatwave — the largest share since 1991 — while ocean temperatures set a fourth straight monthly record. What a marine heatwave is, why it harms sea life and fuels storms, and what the winter forecast says.

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2026-10-26 · 8 min read

Who Is Working on Maritime Climate Action - and How?

A guide to the nations, laboratories, satellite teams and rule-makers working on maritime climate - and where AstolixGen's own small awareness work fits in.

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