Global mean surface temperature anomaly, 1970-2023. The average global temperature in 2023 was 1.32°C above that during the pre-industrial baseline period of 1850 to 1900, surpassing the previous record of 1.29°C that was set from October 2015 to September 2016. Data: Climate Central. Graphic: Nature

Earth had its hottest year on record in 2023 – “This is the hottest temperature that our planet has experienced in something like 125,000 years”

By Carissa Wong 10 November 2023 (Nature) – The past 12 months were the hottest on record. Some 7.3 billion people worldwide were exposed, for at least 10 days, to temperatures that were heavily influenced by global warming, with one-quarter of people facing dangerous levels of extreme heat over the past 12 months, according to a report […]

Map of ensemble mean trends in ocean temperature and ice-shelf basal melting in the West Antarctic Ice Sheet (WAIS) for the Paris 2°C scenario. Temperature is averaged over the depth range 200–700 m. Trends are calculated at each point using annually averaged fields from 2006–2100. White regions indicate no significant trend. The Amundsen Sea region visualized here (latitude–longitude projection) is outlined in red in the inset map of Antarctica (polar stereographic projection). The black dashed line shows the 1,750 m depth contour of the continental shelf break and the blue dashed line outlines the continental shelf region used for analysis. Labels denote ice shelves (G, Getz; D, Dotson; Cr, Crosson; T, Thwaites; P, Pine Island; Co, Cosgrove; A, Abbot). Graphic: Naughten, et al., 2023 / Nature

The climate contradiction that will sink us – “We already have a refugee crisis; I shudder to think what would happen if everyone living within two meters of sea level would be displaced.”

By Zoë Schlanger 10 November 2023 (The Atlantic) – You’d be forgiven for thinking that the fight against climate change is finally going well. The clean-energy revolution is well under way and exceeding expectations. Solar is set to become the cheapest form of energy in most places by 2030, and the remarkable efficiency of heat pumps is driving their own uptake […]

Aerial view of two large ships traveling on a drought-stricken Mississippi River. Photo: Philip Gould / Getty

The Mississippi River is losing its fight with the ocean – “This is not a one-off or once-in-100-years thing”

By Nancy Walecki 11 October 2023 (The Atlantic) – The mouth of the Mississippi River is the arena for a kind of wrestling match. In one corner of the ring is the salt water of the Gulf of Mexico, and in the other, the river’s fresh water. The two shove against each other, and usually, […]

Flood waters ripple through an orchard of dead and dying pistachio trees in Tulare Lake. Photo: Robert Gauthier / Los Angeles Times

Heat, drought, floods, bad air: Will California’s Central Valley survive climate change? “It’s almost like the forecast for the middle, late century – we’re seeing it right now”

By Hayley Smith 25 October 2023 (Los Angeles Times) – One March morning in the small Central Valley town of Woodlake, Joshua Diaz was getting out of bed when he noticed that his carpet was bubbling and that his tile floor had grown slick. He tried to open his front door but felt pressure and […]

U.S. federal government outlays for net interest (12-month rolling sum), 1985-2023. Data are current through August 2023. Data: LSEG Datastream. Graphic: Kripa Jayaram / Reuters

As global debt worries mount, is another crisis brewing? “You can take many, many countries today, and you will see that we are not far away from a public finances crisis”

By Yoruk Bahceli, Dhara Ranasinghe, and Maria Martinez 16 October 2023 LONDON (Reuters) – Record debts, high interest rates, the costs of climate change, health, and pension spending as populations age and fractious politics are stoking fears of a financial market crisis in big, developed economies. A surge in government borrowing costs has put high debt in […]

Geographical pattern of the primary drivers of deteriorating status among amphibians. a,b, The primary drivers of deteriorating status among amphibians during 1980–2004 (482 species; a) and 2004–2022 (306 species; b). Cell colour was determined by the primary driver impacting the most species. Where two primary drivers equally contribute to a cell, an intermediate colour is shown. The stars indicate where the primary driver is undetermined or there are numerous primary drivers. The cell area is 7,775 km2. Graphic: Luedtke, et al., 2023 / Nature

Climate change emerges as major driver of amphibian declines, new research finds – “It’s a gut punch and an awakening”

By JoAnn Adkins 4 October 2023 (FIU) – Amphibians are in trouble and in desperate need of conservation action, according to a new global assessment of the world’s amphibian population. Salamanders are experiencing the greatest decline in numbers, but frogs, toads, newts, and salamanders throughout the Neotropics — extending from South Florida and Caribbean islands […]

A bridge and rubble from a previous house that was underwater at Canyon Lake in Texas reappeared in 2023 due to historically low water levels. Photo: JM Perez / CNN

In Texas, water levels are so low a rarely-seen underwater cave and century-old ruins have appeared – “I haven’t seen the water this low since I moved here. It’s actually kind of sad.”

By Amanda Jackson and Zoe Sottile30 September 2023 (CNN) – Water levels are so low at Canyon Lake in Texas that an underwater cave and remnants of communities that stood more than a century ago at the site are reappearing. The lake, located in Comal County just northeast of San Antonio, is a man-made lake spanning 8,200 acres with […]

Residents walk through floodwaters during a heavy rain storm in the New York City suburb of Mamaroneck in Westchester County, 29 September 2023. Photo: Mike Segar / REUTERS

New York City area gets one of its wettest days in decades, as rain floods subways and streets – “The sad reality is that our climate is changing faster than our infrastructure can respond”

By Jake Offenhartz, Jennifer Peltz, and Bobby Caina Calvan 29 September 2023 NEW YORK (AP) – Rain walloped the New York metropolitan area with a startling punch Friday, knocking out several subway and commuter rail lines, stranding drivers on highways, flooding basements and shuttering a terminal at LaGuardia Airport for hours in one of the […]

The Bald Mountain Wildfire burns in the Grande Prairie Forest Area in Alberta on 12 May 2023. Government of Alberta Fire Service / Canadian Press / AP

Forests are no longer our climate friends – “As extreme as this year’s wildfire emissions have been, they are just the latest escalation in a multi-decade flood of CO₂ pouring out of Canada’s ‘managed’ forests and forestry”

By David Wallace-Wells 6 September 2023 (The New York Times) – Canadian wildfires have this year burned a land area larger than 104 of the world’s 195 countries. The carbon dioxide released by them so far is estimated to be nearly 1.5 billion tons — more than twice as much as Canada releases through transportation, […]

A combination picture shows satellite images of Ozello, Florida before flooding (L) on 12 January 2023 and flooding in the aftermath of Hurricane Idalia in Florida, U.S., 30 August 2023. Photo: Maxar Technologies / REUTERS / CBS News

Home insurers cut natural disasters from policies as climate risks grow – “The same risks that are making insurance more important are making it harder to get”

By Jacob Bogage 3 September 2023 (The Washington Post) – In the aftermath of extreme weather events, major insurers are increasingly no longer offering coverage that homeowners in areas vulnerable to those disasters need most. At least five large U.S. property insurers — including Allstate, American Family, Nationwide, Erie Insurance Group and Berkshire Hathaway — […]

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