Tag Archives: global warming

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

Donald Trump is hampering fight against climate change, WEF warns

donald trump
Donald Trump is accused of hampering the fight against global warming and ecological damage. Photograph: Saul Loeb/AFP/Getty

World Economic Forum outlines huge increase in all five eco risks since the US president assumed office

January 18, 2018 — The World Economic Forum delivered a strong warning about Donald Trump’s go-it-alone approach to tackling climate change as it highlighted the growing threat of environmental collapse in its annual assessment of the risks facing the international community. Continue reading Donald Trump is hampering fight against climate change, WEF warns

Climate sensitivity study suggests narrower range of potential outcomes

power plants
New calculation of greenhouse gases’ effect on temperature reduces range of possible outcomes by more than half, researchers say.
Photograph: Ryan Tong/EPA

Findings should not be seen as taking pressure off need to tackle climate change, authors warn

January 18, 2018 — Earth’s surface will almost certainly not warm up four or five degrees Celsius by 2100, according to a study which, if correct, voids worst-case UN climate change predictions. Continue reading Climate sensitivity study suggests narrower range of potential outcomes

2017 was the hottest year on record without El Niño boost

global temperature map
Global temperature map, January to December 2017. Photograph: NOAA

Data shows the year was also one of the hottest three ever recorded, with scientists warning that the ‘climate tide is rising fast’

January 18, 2018 — 2017 was the hottest year since global records began that was not given an additional boost by the natural climate cycle El Niño, according to new data. Even without an El Niño, the year was still exceptionally hot, being one of the top three ever recorded. Continue reading 2017 was the hottest year on record without El Niño boost

Rising Ocean Temperatures Threaten Carbon-Storing Sea Grass

sea grass
Sea grass wafting in an underwater landscape. Credit: MorganLeeAlain/iStock/Getty Images Plus/Getty Images

A new model predicts that as ocean temperatures rise, carbon-storing sea grass may disappear and even go extinct in some ecosystems

January 17, 2018 — Sea grasses are part of a team of coastal vegetation, including mangroves and salt marshes, that store up to 100 times more carbon than tropical forests at 12 times the speed. Vast prairies of sea grasses stretch for kilometers along the seafloor, storing enough carbon to rival the world’s forests. Continue reading Rising Ocean Temperatures Threaten Carbon-Storing Sea Grass

US unilateralism makes tacking climate change harder, WEF warns

donald trump
Donald Trump is accused of hampering the fight against global warming and ecological damage. Photograph: Saul Loeb/AFP/Getty

Donald Trump’s time in office has coincided with huge increase to all five eco risks surveyed

January 17, 2018 — The World Economic Forum delivered a strong warning about Donald Trump’s go-it-alone approach to tackling climate change as it highlighted the growing threat of environmental collapse in its annual assessment of the risks facing the international community. Continue reading US unilateralism makes tacking climate change harder, WEF warns

New study ‘reduces uncertainty’ for climate sensitivity

view on the sun over inversion from jested
View on the sun over inversion from Jested, Jested-Kozakov ridge, Czech Republic. Credit: Nataliya Hora / Alamy Stock Photo

Scientists have presented a new, narrower estimate of the “climate sensitivity” – a measure of how much the climate could warm in response to the release of greenhouse gases

January 17, 2018 — The latest assessment report from the Intergovernmental Panel on Climate Change (IPCC) estimates that climate sensitivity is close to 3°C, with a “likely” range of 1.5 to 4.5°C. Continue reading New study ‘reduces uncertainty’ for climate sensitivity

Logging surge threatens a quarter of Estonia’s forest, warn conservationists

logging in estonia
Logging has tripled in Estonia in the past decade (Pic: Arthur Neslen)

Baltic state lobbied for flexibilities in EU rules to enable a dramatic increase in forestry, turning its thriving woodland into a net emitter of carbon by 2030

January 16, 2018 — A quarter of Estonia’s forestland is at imminent risk from a major logging increase, aided by “flexibilities” in EU rules that the Baltic state championed. Continue reading Logging surge threatens a quarter of Estonia’s forest, warn conservationists

Trump says US could ‘conceivably’ return to Paris climate deal

donald trump
US President Donald Trump speaks during a press conference with Norway’s Prime Minister Erna Solberg in the East Room of the White House January 10, 2018 in Washington, DC. Brendan Smialowski/AFP

Trump’s comments will renew questions about whether he actually intends to withdraw or simply wants easier US emissions targets

WASHINGTON DC, USA (Jan. 10, 2018) — US President Donald Trump said on Wednesday, January 10, that the United States could “conceivably” return to the Paris climate accord, although he stopped short of signaling any move in that direction. Continue reading Trump says US could ‘conceivably’ return to Paris climate deal

Learning From an Extreme El Niño

2015-2016 extreme el nino
The 2015-2016 extreme El Niño brought drought and fire to Indonesia. Smoke from extensive and uncontrollable forest fires blankets southern Borneo in October 2015. It spread westward causing severe haze over Singapore and Malaysia. Credit: NASA/JPL-Caltech/MISR instrument team

A recent paper in Reviews of Geophysics describes new scientific insights on the El Niño-Southern Oscillation from analysis of the 2015-2016 extreme El Niño

January 10, 2018 — The El Niño-Southern Oscillation (ENSO) cycle is a periodic change in the ocean-atmosphere system of the tropical Pacific Ocean but which has knock-on effects on weather around
the world. In an article recently published in Reviews in Geophysics, Santoso et al. [2017] examined the 2015-2016 El Niño event which was particularly extreme. The editor asked one of the authors to explain the characteristics of that El Niño and what scientists learned from it. Continue reading Learning From an Extreme El Niño