Video: Sargassum seaweed hits Florida Keys beaches

A seagull walks over seaweed that washed ashore on 16 March 2023 in Fort Lauderdale, Florida. A huge mass of sargassum seaweed formed in the Atlantic Ocean and headed for the Florida coastlines and shores throughout the Gulf of Mexico. The sargassum, a naturally occurring type of macroalgae, spans more than 5,000 miles. Photo: Joe Raedle / Getty Images

April 18, 2023

Video: Sargassum seaweed hits Florida Keys beaches

By Richard Burkard 17 April 2023 (Knewz) – It sounds like a B-grade movie title: The approach of the 10-million pound blob. Yet it’s real, and it’s forcing swimmers and owners of beachfront property in Florida to take action. Knewz noted in late March that a giant mass of sargassum seaweed was spotted from space. It […]

The European model shows temperatures across Southeast Asia rising well above normal on Monday, 17 April 2023. Numerous heat records were broken across Southeast Asia, China and other parts of the continent in mid-April, with Thailand in particular experiencing unusually extreme conditions. Weather historian Maximiliano Herrera described it as the “worst April heat wave in Asian history.” Graphic: WeatherBell.com

April 18, 2023

Historic Asia heat breaks hundreds of records, with extremes in Thailand and China – Thailand recorded its all-time hottest temperature – “Worst April heat wave in Asian history”

By Dan Stillman 17 April 2023 (The Washington Post) – Numerous heat records have been broken across Southeast Asia, China and other parts of the continent in recent days as the region remains in the grip of a dangerously scorching heat wave, with Thailand in particular experiencing unusually extreme conditions. Weather historian Maximiliano Herrera is describing […]

Map showing the physical imprint and consequences of extreme summer heat across the Pacific Northwest in 2021. The June-August (JJA) 2021 seasonally averaged temperature anomalies (t2m) over North America calculated from the 1951-1980 mean of ERA5 Reanalysis, with the Pacific Northwest region (PNW; 42–53 °N, 124–115 °W, dark blue box) highlighted. The year 2021 (dashed black line) is shown relative to the distribution (black line) and probability density (red line) curves of JJA t2m values over the period 1950–2021 for the PNW region. White exes indicate the locations of all tree-ring chronology predictors used in the subsequent JJA t2m reconstruction. Graphic: Heeter, et al., 2023 / npj Climate and Atmospheric Science

April 16, 2023

The summer of 2021 was the Pacific Northwest’s hottest in a millennium – “The tree scorch was shocking. The average summer temperatures were extraordinarily away from the norm.”

By Sid Perkins 14 April 2023 (Science News) – A two-week-long heat wave in the Pacific Northwest in 2021 helped make that summer a record breaker for the region (SN: 7/7/21). Now, tree ring data from the area’s forests reveal that the summer of 2021 was also the region’s hottest of the last millennium. The average temperature […]

Physiological response curves may shift as soil microbiomes respond to drought. In the short term (minutes to days), physiological acclimation may help to sustain function, such as soil carbon decomposition. Over weeks to decades, community shifts and evolution could alter response curves to maintain functioning under dry conditions. Broken lines indicate potential variation in the breadth of the shifted response curves. Graphic: Evans, et al., 2022 / Functional Ecology

April 16, 2023

Droughts destroying Earth’s biggest carbon sink on land: study – If more carbon-releasing microbes survive than carbon-sequestering microbes, we could end up with carbon-depleted soils

By Mark Waghorn 12 April 2023 (SWNS) – Droughts are destroying Earth’s biggest carbon sink on land, according to new research. Soil stores more greenhouse gas than plants and the atmosphere combined – thanks to the microbes that live in it. Moisture plays a key role in the process. Lack of rainfall is disrupting this […]

A strain of Candida auris cultured in a Centers for Disease Control and Prevention laboratory. The CDC reports that the fungus is causing infections in healthcare facilities.Photo: Shawn Lockhart / Associated Press

April 16, 2023

This rapidly spreading deadly fungus is a warning about climate change

By Arjun V.K. Sharma 12 April 2023 (Los Angeles Times) – Last month, the United Nations’ Intergovernmental Panel on Climate Change charted global temperatures to be 1.1 degrees Celsius above preindustrial levels and on a destructive trajectory to surpass 1.5 degrees Celsius of warming by the early 2030s. This intersects surprisingly with another piece of news: the […]

People up for Easter sunrise services on Cocoa Beach, Florida encountered heavy seaweed, 9 April 2023. Photo: Malcolm Denemark / Florida Today

April 15, 2023

Sargassum seaweed soils Space Coast beaches at record levels in 2023 – “This year’s Sargassum bloom will likely be the largest ever recorded, with major impacts throughout the next few months”

By Jim Waymer 12 April 2023 (Florida Today) – We’re already in the weeds. All that stringy stuff that washed up on Brevard County beaches this past week is just the beginning of what scientists predict will grow into the largest-ever bloom of Sargassum seaweed ever recorded. Sargassum, which the Caribbean Sea delivers seasonally to the Gulf Stream […]

World map showing surface air temperature anomaly for March 2023 relative to the March average for the period 1991-2020. Data source: ERA5. Graphic: Copernicus Climate Change Service / ECMWF

April 15, 2023

Earth has second-warmest March in 2023 even before arrival of planet-heating El Niño – It was the 529th consecutive month to feature temperatures above the 20th-century average – “What I still find shocking is that the last eight years were the eight warmest years on record”

By Matthew Cappucci 7 April 2023 (The Washington Post) – March 2023 will go down in the books as tying for the second warmest March on record. That’s according to the Copernicus Climate Change Service of the European Union. Temperatures globally were several degrees above average in most places outside the western U.S., where a […]

Aerial view of homes buried in snow in Soda Springs, California in March 2023. Photo: Josh Edelson / The Washington Post

April 15, 2023

A wet winter won’t stave off the Colorado River’s water cuts – “There are discussions going on but they’re not making much progress. The level of distrust and animosity is really remarkable.”

By Joshua Partlow 3 April 2023 GRAND JUNCTION, Colorado (The Washington Post) – The abundant snow in the Rocky Mountains this year has been a welcome relief, but is not enough to overcome two decades of drought that has pushed major reservoirs along the Colorado River down to dangerous levels, Camille Calimlim Touton, the commissioner […]

Global monthly mean atmospheric carbon dioxide, 1979-2022. The global surface average for CO2 rose by 2.13 parts per million (ppm) to 417.06 ppm, roughly the same rate observed during the last decade. Atmospheric CO2 is now 50% higher than pre-industrial levels. 2022 was the 11th consecutive year CO2 increased by more than 2 ppm, the highest sustained rate of CO2 increases in the 65 years since monitoring began. Prior to 2013, three consecutive years of CO2 growth of 2 ppm or more had never been recorded. The Global Monitoring Division of NOAA/Earth System Research Laboratory has measured carbon dioxide and other greenhouse gases for several decades at a globally distributed network of air sampling sites. This graph shows monthly mean abundance of carbon dioxide globally averaged over marine surface sites. Graphic: NOAA Global Monitoring Laboratory

April 15, 2023

Greenhouse gases continued to increase rapidly in 2022 – Carbon dioxide, methane, and nitrous oxide rise further into uncharted levels – “Greenhouse gas emissions continue to rise at an alarming pace and will persist in the atmosphere for thousands of years”

5 April 2023 (NOAA) – Levels of carbon dioxide (CO2), methane and nitrous oxide, the three greenhouse gases emitted by human activity that are the most significant contributors to climate change, continued their historically high rates of growth in the atmosphere during 2022, according to NOAA scientists. The global surface average for CO2 rose by 2.13 […]

World map showing sea surface temperatures as of 14 April 2023, with warm colors indicating higher temperatures. Ocean surface temperatures hit an all-time high in April 2023, breaking every record since satellite measurements began in the 1980s. Graphic: ClimateReanalyzer.org

April 15, 2023

The surface of the ocean is now so hot it’s broken every record since satellite measurements began

By Stephanie Pappas 14 April 2023 (Live Science) – Ocean surface temperatures have hit an all-time high this month, breaking every record since satellite measurements began in the 1980s. Temperatures reached a global average of 69.98 Fahrenheit (21.1 degrees Celsius) in the first days of April. The previous record of 69.9 F (21 degrees C) […]

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Category: climate change