pollution – Page 3 – 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 […]

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 […]

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 […]

Graph showing energy generation mix in China in the first four months of both 2019 and 2023. Data: National Bureau of Statistics of China. Graphic: David Stern and Khalid Ahmed

July 23, 2023

China is pumping out carbon emissions in 2023 as if COVID never happened – “China’s new path seems to be less sustainable than before”

By David Stern and Khalid Ahmed 9 July 2023 (The Conversation) – Carbon emissions from China are growing faster now than before COVID-19 struck, data show, dashing hopes the pandemic may have put the world’s most polluting nation on a new emissions trajectory. We compared emissions in China over the first four months of 2019 […]

A sick sea lion and her pup are shown recovering from domoic acid poisoning at the Marine Mammal Care Center in San Pedro, California, on 6 July 2023. During the summer of 2023, the center cared for sea lions that were sickened by a historically bad algal bloom along California’s Coast. Photo: Yannick Peterhans / USA TODAY

July 9, 2023

“Death coming out of the ocean”: Red tide killing California sea lions, dolphins – “I have been a marine mammal veterinarian for 35 years, and this is definitely the worst in my professional lifetime”

By Amanda Lee Myers 8 July 2023 (USA TODAY) – Jalapeño the sea lion turned up on a crowded California beach in a daze, experiencing seizures and heavily pregnant. Instead of giving birth in a remote location like sea lions prefer, Jalapeño had her pup on Southern California’s Hermosa Beach on a busy Saturday, surrounded by throngs […]

A researcher stands in a glacier cave on Svalbard, Norway. In 2023, scientists discovered that as the Arctic warms, shrinking glaciers are exposing bubbling groundwater springs which could provide an underestimated source of the potent greenhouse gas methane. Photo: Gabrielle Kleber

July 8, 2023

Shrinking Arctic glaciers are unearthing a new source of methane – “The amount of methane leaking from the springs we measured will likely be dwarfed by the total volume of trapped gas lying below these glaciers, waiting to escape”

By Catherine Martin-Jones 6 July 2023 (University of Cambridge) – As the Arctic warms, shrinking glaciers are exposing bubbling groundwater springs which could provide an underestimated source of the potent greenhouse gas methane, finds new research published today in Nature Geoscience. The study, led by researchers from the University of Cambridge and the University Centre in Svalbard, […]

Heat index forecast for the United States, 3 July 2023 - 8 July 2023. An estimated 76 million people in the U.S. were exposed to dangerous heat on 2 July 2023. Graphic: The Washington Post

July 2, 2023

Summer in the Southern U.S. is becoming unbearable – “This is how it’s going to be: Things will get hotter, storms will get worse, wildfire smoke will get more common. All the while, the ruts of inequity will be worn deeper, the same people time and time again placed on the front lines of catastrophe.”

By Olivia Paschal 1 July 2023 (The Atlantic) – A few weeks ago, as the first wave of smoke from the Canadian wildfires rolled south, I was getting ready to drive from Charlottesville, Virginia, about 18 hours west to my hometown of Rogers, Arkansas, to visit family. I figured that by the time I hit […]

People watch the sunset as the smoke from wildfires is visible in Toronto on 28 June 2023. Photo: Chris Young / AP

July 2, 2023

Canada marks worst wildfire season on record in 2023 – Wildfires have burned 19.5 million acres across Canada this year so far

By Somayeh Malekian, Emma Ogao, and Victoria Beaule 1 July 2023 LONDON (ABC News) – Canada’s wildfire season is now the worst ever recorded as the country has exceeded the largest area ever burned in a year, totaling more than 19.5 million acres so far. There are at least 500 active fires burning around the […]

Seasonal managed honeybee colony loss rates in the United States across years 2008-2023 (A), and by operation type (B-D): backyard (managing up to 50 colonies), sideline (managing 51-500), and commercial (managing >500 colonies) beekeepers. The loss rate was calculated as the total number of colonies lost divided by the number of colonies at risk during the season. Colonies at risk were composed of living colonies at the start of a period, as well as new colonies made or acquired, while excluding colonies sold or parted with. Annual loss covers the whole period from one 1 April to the next 1 April (in red); summer (1 April – 1 October, in yellow); winter (1 October – 1 April, in blue). Error bars represent the 95% confidence interval obtained from a bootstrap resampling of the data (n-out-of-n, 1000 rep). Graphic: Bee Informed Partnership

June 30, 2023

Nearly half of U.S. honeybee colonies died in the 2022-2023 season – “This is a very troubling loss number when we barely manage sufficient colonies to meet pollination demands in the U.S.”

By Seth Borenstein 22 June 2023 WASHINGTON (AP) – America’s honeybee hives just staggered through the second highest death rate on record, with beekeepers losing nearly half of their managed colonies, an annual bee survey found. But using costly and Herculean measures to create new colonies, beekeepers are somehow keeping afloat. Thursday’s University of Maryland […]

Plaintiffs Mica, 14; Badge 15, Lander 18, and Taleah, 19, listen to arguments during a status hearing on 12 May 2023, in Helena, Montana, for a case that they and other Montana youth filed against the state arguing Montana officials are not meeting their constitutional obligations to protect residents from climate change. The first-of-its-kind trial began Monday, 12 June 2023, before District Court Judge Kathy Seeley in Helena. Photo: Thom Bridge /Independent Record / AP

June 13, 2023

Youth environmentalists bring Montana climate case to trial after 12 years, seeking to set precedent – “We’ve seen repeatedly over the last few years what the Montana state Legislature is choosing. They are choosing fossil fuel development. They are choosing corporations over the needs of their citizens.”

By Matthew Brown and Amy Beth Hanson 10 June 2023 HELENA, Montana (AP News) – Whether a constitutional right to a healthy, livable climate is protected by state law is at the center of a lawsuit going to trial Monday in Montana, where 16 young plaintiffs and their attorneys hope to set an important legal precedent. It’s the first […]