Tag Archives: ocean acidification

Rising CO2 levels threaten aquatic life, studies show

a shoal of fish off the coast of queensland, australia
A shoal of fish off the coast of Queensland, Australia (Flickr/ robdownunder)

Both marine and freshwater species are affected by acidifying water in ways that disrupt the entire food web, scientists warn

January 18, 2018 — New studies warn that global warming is not good news for aquatic life, putting at risk the creatures both of the seas and of inland waterways. Continue reading Rising CO2 levels threaten aquatic life, studies show

Could biodiversity destruction lead to a global tipping point

dodo skeleton
Summers Place Auctions sells first Dodo skeleton in a century for £346,300 Summers Place Auctions announces the sale of a 95% complete composite skeleton of a Dodo the first to come up for sale since the early 20th century. It was part of the fourth Evolution sale at Summers Place Auctions on Tuesday, 22nd November 2016 and the hammer went down at £280,000.
Photograph: Leon Neal/Getty Images

We are destroying the world’s biodiversity. Yet debate has erupted over just what this means for the planet – and us

January 16, 2018 — Just over 250 million years ago, the planet suffered what may be described as its greatest holocaust: ninety-six percent of marine genera (plural of genus) and seventy percent of Continue reading Could biodiversity destruction lead to a global tipping point

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

Weatherwatch: climate change and overfishing bring explosion of jellyfish

swarm of comb jellyfish, which are a threat to nuclear power stations and to fish farms
Swarm of comb jellyfish, which are a threat to nuclear power stations and to fish farms. Photograph: Martin Almqvist/Getty Images/Johner Images

Warmer and more acid seas cause huge blooms of jellyfish, but scientists are working on ways to convert them into something useful

November 7, 2017 — The combination of climate change and overfishing is causing a population explosion in jellyfish. Since there are fewer fish to eat them, they appear off the British coast in vast Continue reading Weatherwatch: climate change and overfishing bring explosion of jellyfish

2017 set to be hottest non-El Niño year, says UN

2017 is on track to be the hottest year on record
2017 is on track to be the hottest year on record except for two warmed by El Nino phenomena, says the UN’s World Meteorological Organization

The UN’s World Meteorological Organization says some 30 percent of the world’s population now experience ‘extreme hot temperatures’ for at least several days each year

BONN, Germany (Nov. 6, 2017) — 2017 is on track to be the hottest year on record except for two warmed by El Niño phenomena, the UN’s World Meteorological Organization said Monday, November 6. Continue reading 2017 set to be hottest non-El Niño year, says UN

How Will Climate Change Affect the United States in Decades to Come

a satellite image of an atmospheric river over the northeastern pacific
A satellite image of an atmospheric river over the northeastern Pacific on 20 February 2017, which helped California and the American West emerge from a 5-year drought. Atmospheric rivers—relatively long, narrow regions in the atmosphere—transport most of the water vapor outside of the tropics. When a large atmospheric river makes landfall, extreme precipitation—sometimes double the amount of rain that fell in the preceding 5 months—and flooding can result. The frequency and intensity of atmospheric rivers and droughts are just two realms explored in a new report that focuses on the effects of climate change across the United States. Credit: Jesse Allen, NASA Earth Observatory/VIIRS/Suomi-NPP

A new U.S. government report shows that climate is changing and that human activities will lead to many more changes. These changes will affect sea levels, drought frequency, severe precipitation, and more

November 3, 2017 — Today scientists released a new report that details how climate change is affecting weather and climate across the United States and how future changes in climate could play out across the country. Continue reading How Will Climate Change Affect the United States in Decades to Come

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

Volcanic eruptions triggered global warming 56m years ago, study reveals

Ancient earth’s volcanoes fuelled its rapid warming and led to extinction of marine life
Ancient Earth’s volcanoes fuelled its rapid warming and led to extinction of marine life. Photograph: Alamy Stock Photo

Scientists say one of the most rapid periods of warming in Earth’s history was due to gradual release of CO2, warning current levels of emissions were even higher

August 30, 2017 — A dramatic period of global warming 56 million years ago that saw temperatures climb by up to five degrees and triggered extinctions of marine organisms was down to volcanic Continue reading Volcanic eruptions triggered global warming 56m years ago, study reveals

Underground magma triggered Earth’s worst mass extinction with greenhouse gases

mount etna
Italy’s Mount Etna, Europe’s tallest and most active volcano, spews lava as it erupts on the southern island of Sicily, Italy February 28, 2017. Photograph: Antonio Parrinello/Reuters

There are parallels between today’s and past greenhouse gas-driven climate changes

August 1, 2017 — Coincidence doesn’t prove causality, as they say, but when the same two things happen together over and over again through the vast span of geological time, there must be a causal link. Continue reading Underground magma triggered Earth’s worst mass extinction with greenhouse gases

Extreme El Niño events more frequent even if warming limited to 1.5C – report

extreme el niño
The risk of extreme El Niño events would rise from five events per century to 10 by 2050 under a scenario that presumes warming peaks at 1.5C by that year. Photograph: Alamy

Modelling suggests Australia would face more frequent drought-inducing weather events beyond any climate stabilisation

July 25, 2017 — Extreme El Niño events that can cause crippling drought in Australia are likely to be far more frequent even if the world pulls off mission improbable and limits global warming to 1.5°C. Continue reading Extreme El Niño events more frequent even if warming limited to 1.5C – report