Daily global surface air temperature, 1940-2023. July 2023 was the hottest July on record. The chart shows average global air temperature at 2 metres above the surface (land and sea). Data: Copernicus/ERA5. Graphic: The Guardian

“The era of global boiling has arrived,” says UN chief as July 2023 set to be hottest month on record – “Climate change is here. It is terrifying. And it is just the beginning.”

By Ajit Niranjan 27 July 2023 (The Guardian) – The era of global warming has ended and “the era of global boiling has arrived”, the UN secretary general, António Guterres, has said after scientists confirmed July was on track to be the world’s hottest month on record. “Climate change is here. It is terrifying. And […]

Satellite view of an algae bloom in the waters north of the Scandinavian and Kola peninsulas, 3 August 2023. The image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite. One group of researchers observed large shifts in the location of summer coccolithophore blooms to the northeast between 2002 and 2018. They also identified an increasing presence of Phaeocystis pouchetii, a type of phytoplankton normally found in warmer waters that can form gelatinous colonies millimeters in diameter. The effect that such changes might have on the ecosystem is a topic of ongoing research. Data: MODIS data from NASA EOSDIS LANCE and GIBS/Worldview. Photo: Michala Garrison / NASA Earth Observatory

The ocean’s color is changing as a consequence of global warming – Color changes reflect significant shifts in essential marine ecosystems – “To actually see it happening for real is not surprising, but frightening”

By Jennifer Chu 12 July 2023 (MIT News Office) – The ocean’s color has changed significantly over the last 20 years, and the global trend is likely a consequence of human-induced climate change, report scientists at MIT, the National Oceanography Center in the U.K., and elsewhere.   In a study appearing today in Nature, the team writes […]

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

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

“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 […]

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

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 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 […]

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

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 […]

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

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 […]

Map showing the American GFS model forecast for the heat dome covering the U.S., 29 July 2023. Graphic: WeatherBell

More records will fall as brutal heat wave continues across southern U.S. – “Extreme heat will significantly increase the potential for heat-related illnesses, particularly for those working or participating in outdoor activities”

By Matthew Cappucci 21 July 2023 (The Washington Post) – For more than a month, a blistering heat wave has baked much of the Lower 48, reaching from the Pacific to the Atlantic and bringing triple digit temperatures to nearly 70 million Americans. The parent “heat dome” is going nowhere anytime soon and will push the entire continental United […]

Age-standardized mortality trends in the United States and other wealthy nations. Figure shows deaths per 100,000 person-years: A) 1933–2021 and B) 1980–2021. The solid thick red line is the United States, the dashed thick grey line is the population-weighted average of 21 other wealthy nations, and the thin grey lines are country-specific trends for each of the other nations. Total mortality was age-standardized to the 2000 US population age distribution. Graphic: Bor, et al., 2023 / PNAS Nexus

More than one million Americans “missing” as U.S. endures crisis of early death – “Americans die younger than their counterparts elsewhere because when corporate profits conflict with health, our politicians side with the corporations”

By Tessa Koumoundouros 20 July 2023 (ScienceAlert) – If the United States of America had the same mortality rates as other wealthy countries, more than 1 million people would have avoided death in 2021, a new study found. Researchers have termed these excess deaths the Missing Americans. “The number of Missing Americans in recent years is unprecedented […]

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