Tag Archives: oceans

Deadly irukandji jellyfish ‘drifting south towards Gold Coast’ as sea temperatures rise

marine stinger warning sign
A marine stinger warning sign is seen at a beach in Townsville in far-north Queensland. Experts warn venomous irukandji jellyfish are drifting south. Photograph: Dave Hunt/AAP

Expert warns Queensland’s tourism industry could face future collapse after stinger found at Fraser Island and a boy stung on sunshine coast

January 10, 2018 — Deadly irukandji jellyfish are drifting further south along Queensland’s coastline and could eventually put tourism as far south as the Gold Coast at risk, an expert has warned. Continue reading Deadly irukandji jellyfish ‘drifting south towards Gold Coast’ as sea temperatures rise

Oceans suffocating as huge dead zones quadruple since 1950, scientists warn

dead sardines in temuco, chile
A fisherman on a beach in Temuco, Chile that is blanketed with dead sardines, a result of algal blooms that suck oxygen out of the water. Photograph: Felix Marquez/AP

Areas starved of oxygen in open ocean and by coasts have soared in recent decades, risking dire consequences for marine life and humanity

January 4, 2018 — Ocean dead zones with zero oxygen have quadrupled in size since 1950, scientists have warned, while the number of very low oxygen sites near coasts have multiplied tenfold. Continue reading Oceans suffocating as huge dead zones quadruple since 1950, scientists warn

Oceans under greatest threat in history, warns Sir David Attenborough

the leatherback turtle is the largest turtle on the planet
The leatherback turtle is the largest turtle on the planet. David Attenborough travels to Trinidad to meet a community trying to save these giants. Photograph: Gavin Thurston

Blue Planet 2 producers say final episode lays bare shocking damage humanity is wreaking in the seas, from climate change to plastic pollution to noise

December 5, 2017 — The world’s oceans are under the greatest threat in history, according to Sir David Attenborough. The seas are a vital part of the global ecosystem, leaving the future of all life on Earth dependent on humanity’s actions, he says. Continue reading Oceans under greatest threat in history, warns Sir David Attenborough

Ocean Circulation, Carbon Cycling During the Last Deglaciation

ubsunur hollow biosphere reserve
Ubsunur Hollow Biosphere Reserve, on the border between Mongolia and Tyva, is one of the last remnants of the mammoth steppe, Earth’s most extensive biome during the Last Glacial Maximum. Last summer, scientists met to discuss changes in ocean circulation between this glacial maximum period and the present time and how these changes are related to changes in the climate and carbon cycling. Credit: Alexander Leshcheonok, CC BY-SA 4.0

Past Global Changes (PAGES) OC3 Working Group second workshop on Ocean Circulation and Carbon Cycling during Last Deglaciation: Regional Synthesis of Carbon Isotopes Data; Corvallis, Oregon, 27–29 June 2017

December 3, 2017 — Scientists still don’t fully understand the climatic transition that took place on Earth between the Last Glacial Maximum and recent times. Even though carbon cycling and the associated rise in atmospheric carbon dioxide (CO2) during this Continue reading Ocean Circulation, Carbon Cycling During the Last Deglaciation

Mexico creates vast new ocean reserve to protect ‘Galapagos of North America’

humpback whales are among the species found in the revillagigedo archipelago
Humpback whales are among the species found in the Revillagigedo archipelago. Photograph: Ullstein Bild/Getty Images

Fishing, mining and new hotels will be prohibited in the ‘biologically spectacular’ Revillagigedo archipelago

November 26, 2017 — Mexico’s government has created the largest ocean reserve in North America around a Pacific archipelago regarded as its crown jewel. Continue reading Mexico creates vast new ocean reserve to protect ‘Galapagos of North America’

What do Jellyfish teach us about climate change

jellyfish
Jellyfish. Photograph: Dr. Edward Hammill

A new study shows that the biological effects of two ecosystem changes can be greater than their individual impacts

November 3, 2017 —What do Jellyfish teach us about climate change?

A lot. At least that’s what I learned after reading a very recent paper out in the journal Global Climate Change. The article, “Ocean acidification alters zooplankton communities and increases top- Continue reading What do Jellyfish teach us about climate change

Sewage plants are leaking millions of tiny plastic beads into Britain’s seas

microplastics used in wastewater plants could be contributing to the problem of plastic pollution in oceans
Microplastics used in wastewater plants could be contributing to the problem of plastic pollution in oceans, according to the report. Photograph: Sandy Young/Alamy Stock Photo

The plastic beads used for filtering sewage are hard to spot and pose a risk to wildlife, according to a new report

October 11, 2017 — Sewage plants are contributing to plastic pollution in the oceans with millions of tiny beads spilling into the seas around the UK, according to a new report. Continue reading Sewage plants are leaking millions of tiny plastic beads into Britain’s seas

EXPLAINER: How tropical cyclones form

typhoon haiyan
DEADLY BEAUTY. Typhoon Haiyan, one of the strongest storms ever recorded, at peak intensity and approaching the Philippines on November 7, 2013. Image courtesy NASA

A tropical cyclone is one of the Earth’s strongest forces, a combination of strong, howling winds and heavy precipitation. How do these forces of nature form?

MANILA, Philippines (Sept. 28, 2017) — A tropical cyclone – whether called a typhoon, a cyclone, or a hurricane – is one of the most destructive disasters known to man. Continue reading EXPLAINER: How tropical cyclones form

Australia’s ‘sickening’ threat to marine reserves undermines global protection

david suzuki
David Suzuki has implored Australia to ‘wake up’ and face the interconnected issues of climate change and ocean health. Photograph: Scott Oates

Conservationist and 1,461 other scientists release statement describing Australia’s oceans as a ‘global asset’ that must be protected

September 26, 2017 — Growing global momentum to protect the world’s oceans from overfishing could be undermined by Australia, warns renowned conservationist David Suzuki and more than 1,461 other scientists. Continue reading Australia’s ‘sickening’ threat to marine reserves undermines global protection

It takes just 4 years to detect human warming of the oceans

bondi beach, sydney, australia
Bondi Beach in Sydney, Australia. Photograph: Mick Tsikas/AAP

Our new paper illustrates the rapid, consistent warming of Earth’s oceans

September 21, 2017 — We’ve known for decades that the Earth is warming, but a key question is, how fast? Another key question is whether the warming is primarily caused by human activities. If we Continue reading It takes just 4 years to detect human warming of the oceans