climate change – Page 21 – Desdemona Despair

Changes of sea surface temperature (SST) gradient anomalies and the spatial distribution of SST to a changing CO2 pathway. (A) Time evolution of latitudinal gradient of sea surface temperature anomaly (unit: °C) in the SH (pink) from its PD value. (B) Same as (A) but for the NH (black), the North Pacific (NP; 120°E to 90°W, green dotted line), and the North Atlantic (NA; 70°W to 0°E, orange dashed line) sectors with the Atlantic meridional overturning circulation (AMOC) strength anomaly from its PD value (skyblue; unit: Sv). The SST gradient is determined by the SST differences from the tropics (0° to 15°) to the midlatitudes (45° to 60°) in each hemisphere. The AMOC strength is defined by averaging annual-mean Atlantic meridional ocean stream function within the latitudinal band from 35°N to 45°N at a depth of 1000 m. Note that the weakening of AMOC is upwards in the right axis in (B). All values are based on the ensemble mean of 28 members (subjected to an 11-year running mean), with their 1 SD ranges across the ensemble members marked with shading. (C to E) SST changes (unit: °C) for peak (2121–2160) minus early RU (2001–2040) periods, late RD (2241–2280) minus peak periods, and late RD minus early RU periods, respectively. Climatological SST in the PD climate (unit: °C) is contoured in (C) to (E). The hatched regions in (C) to (E) indicate where temperature changes are statistically insignificant at the 95% confidence level. The SH, NP, and NA sectors for the SST gradient in (A) and (B) are denoted by colored boxes in (C) to (E). Graphic: Kim, et al., 2023 / Science Advances

August 5, 2023

Removing carbon from Earth’s atmosphere may not “fix” climate change – Changes to atmospheric circulation caused by global warming may persist for centuries after CO2 concentrations decrease – “We cannot control nature. We cannot reverse the consequences that easily. We cannot fix nature.”

By Tereza Pultarova 28 July 2023 (Space.com) – Removing carbon from Earth’s atmosphere may not reverse devastating changes to weather patterns in vulnerable areas, a new study suggests. In the study, Korean researchers simulated how removing large quantities of the greenhouse gas carbon dioxide from the air might affect the progress of local climate changes […]

Map of surface temperature in South America on 1 August 2023. The winter of 2023 in South America saw temperatures as high as 38.9°C in the Chilean Andes, much higher than what Southern Europe had in mid-summer at the same elevation. Graphic: MetDesk / WXCharts.com

August 5, 2023

“Pushing temperatures into the unknown”: South America swelters under “fierce” heatwave in the middle of winter 2023 – “This temperature is the highest recorded in this period in all of Chile”

By Sophie Tanno 4 August 2023 (CNN) – Parts of South America are sweltering under abnormally hot temperatures – despite being in the depths of winter – as the combination of human-caused climate change and the arrival of El Niño feed into extreme winter heat. Southern Cone countries including Chile and Argentina have experienced summer-like […]

August 5, 2023

Texans die from heat after GOP Governor bans mandatory water breaks – “Houston will fight so its residents retain their constitutional rights and have immediate local recourse to government”

By Steven Monacelli 6 July 2023 (Texas Observer) – As a part of a bill critics have dubbed the “Death Star” bill—an expansive law that preempts legislation in eight key areas of local government—the Legislature has overridden local ordinances that require giving workers water breaks. Otherwise known as House Bill 2127, it was signed into […]

Center for Industrial Progress President Alex Epstein speaks at a House Oversight and Accountability subcommittee hearing in March 2023. Photo: Francis Chung / POLITICO

July 31, 2023

“It’s called summer”: U.S. Republicans brush off record 2023 heat wave – “Thank God for air conditioning”

By Chris D’Angelo and Igor Bobic 28 July 2023 (Huffington Post) – Unless you’ve been living underground or have a vested interest in turning a blind eye to reality, you know that climate change has sent temperatures soaring to dangerous levels around the planet this summer. Two global climate organizations on Thursday confirmed that July […]

Map showing how dozens of U.S. states shifted infrastructure law climate funds to other projects. Data: Federal Highway Administration/Kansas Department of Transportation. Graphic: Ian Duncan / The Washington Post

July 31, 2023

U.S. states siphoned away $750 million in infrastructure law climate funds – “It’s an absolute failure that this is allowed to happen”

By Ian Duncan 27 July 2023 (The Washington Post) – With $14 billion in new federal funding, the infrastructure law was supposed to jolt efforts to protect the U.S. highway network from a changing climate and curb carbon emissions that are warming the planet. New records show the effort is off to an unsteady start […]

The 30 warmest months on record, by monthly global average surface air temperature. July 2023 was the hottest month on record and the warmest the Earth has been in 120,000 years, based on data collected from coral reefs, deep sea sediment cores, and tree rings. Graphic: European Commission’s Copernicus Climate Change Service

July 31, 2023

July 2023 was likely the hottest month in 120,000 years – “This anomaly is so large with respect to other record-breaking months that we are virtually certain that the month will become the warmest July on record, the warmest month on record”

By Laura Baisas 31 July 2023 (Popular Science) – Scientists are already calculating that July 2023 will be the hottest month on record—and likely the warmest month that humanity has ever experienced. The United Nations’ World Meteorological Organization (WMO) and the European Union’s Copernicus Climate Change Service announced late last week that this month’s heat was beyond record-smashing. The […]

This photo provided by the University of Miami Coral Reef Futures Lab, shows bleaching to elkhorn coral on Thursday, 20 July 2023, in the North Dry Rocks Reef off the coast of Key Largo, Fla. Some Florida Keys corals are losing their color weeks earlier in the summer than has been documented before, meaning they are under stress and their health is potentially endangered, federal scientists said. Photo: Liv Williamson / University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science / AP

July 31, 2023

Florida’s record hot ocean temperatures cause early coral bleaching – Some reefs in the Florida Keys have already lost all their color – “We are at least a month ahead of time, if not two months”

By Cecelia Smith-Schoenwalder 26 July 2023 (US News & World Report) – Record high ocean temperatures around the Florida Keys are driving coral reefs to lose their color weeks earlier than usual in the latest sign that climate change and El Niño are pushing the world into uncharted territory. On Monday, a buoy in the […]

Primary energy global consumption (left) and share of global primary energy by source (right), 2000-2022. Primary energy demand growth slowed in 2022, increasing by 1.1 percent, compared to 5.5 percent in 2021, and taking it to around 3 percent above the 2019 pre-COVID level. Consumption increased in all regions apart from Europe (-3.8 percent) and CIS (-5.8 percent). Renewables’ (excluding hydro) share of primary energy consumption reached 7.5 percent, an increase of nearly 1 percent over the previous year. Fossil fuel consumption as a percentage of primary energy remained steady at 82 percent. Graphic: Energy Institute

July 24, 2023

World energy system struggled in face of geopolitical and environmental crises in 2022 – Coal production reached record high – CO2 emissions reached record level – “We are still heading in the opposite direction to that required by the Paris Agreement”

26 June 2023 (EI) – The Energy Institute (EI) and partners KPMG and Kearney today released the 72nd annual edition of the Statistical Review of World Energy, presenting for the first time full global energy data for 2022. Five key themes emerge from the data EI President Juliet Davenport OBE HonFEI said: “The EI Statistical Review […]

A man rides a bike on a small road on the outskirts of Frankfurt, Germany, as the sun rises on Friday, 7 July 2023. Photo: Michael Probst / AP Photo

July 24, 2023

Climate collapse could happen fast – “Many scientists knew these things would happen, but we’re taken aback by the severity of the major changes we’re seeing”

By Lois Parshley 20 July 2023 (The Atlantic) – Ever since some of the earliest projections of climate change were made back in the 1970s, they have been remarkably accurate at predicting the rate at which global temperatures would rise. For decades, climate change has proceeded at roughly the expected pace, says David Armstrong McKay, a […]

Correlation of significant shifts in or appearances of markers between sites documenting the onset of the Anthropocene. Collectively, the 12 reference sites, via analysis across many sites using similar multiple proxies, show the extent to which the proxies at each site cluster at an approximately coincident level around the mid-20th century, consistent with the Great Acceleration Event Array (GAEA) proposed by Waters et al. (2022). This demonstrates the degree to which the primary marker chosen at a site represents the range of critical changes encompassed by that section. Each site team has identified a level where significant changes cluster, these ranging in age between 1945 and 1968 CE, though for most sites the level chosen dates to the 1950s. Graphic: Waters, et al., 2023 / The Anthropocene Review

July 23, 2023

Canadian lake sediments reveal start of Earth’s Anthropocene epoch – “Clearly, the biology of the planet has changed abruptly. We cannot go back to a Holocene state now.”

By David Stanway 11 July 2023 (Reuters) – Sediment deposited at Crawford Lake, a small but deep body of water in Canada’s Ontario province, provides unmistakable evidence that Earth entered a new human-driven geological chapter – the Anthropocene epoch – some seven decades ago, a team of scientists said on Tuesday. The members of the […]