The sea bottom near southern California has been hiding a very dirty secret: decades of discarded chemicals in thousands of barrels. And the toxic debris field is even bigger than anyone expected, containing at least 27,000 drums of DDT and industrial waste, scientists recently discovered. High concentrations of DDT (dichlorodiphenyltrichloroethane, an insecticide that was widely used for pest control during the 1940s and 1950s) were previously detected in ocean sediments between the Los Angeles coast and Catalina Island, in 2011 and 2013. At the time, scientists who searched the seafloor in the area identified 60 barrels (possibly containing DDT or other waste) and found DDT contamination in sediments, but the full extent of the area's contamination was unknown. Now, a research expedition presents a clearer picture of the deep-sea dump site. Their findings reveal a stretch of ocean bottom studded with at least 27,000 industrial waste barrels — and possibly as many as 100,000, … [Read more...] about Massive DDT dumping ground found off the Los Angeles coast is bigger than anyone thought
South coast plaza california
SACRAMENTO, Calif. — California's iconic trees, the giant sequoias, may sail through the state's current extreme drought. The huge trees survived even drier conditions during their long lives, studies show. The oldest sequoias live for more than 3,000 years. But will giant sequoias still be around as California's climate shifts under the influence of global warming? It's hard to know — there are still too many unsolved mysteries about these massive trees, many scientists say. Even during California's last serious drought, in the 1970s, giant sequoias started growing faster, though no one is sure what is driving the gains. But climate models forecast even warmer and drier conditions by 2100 for California, which could make the sequoias' mountain soil too parched for the world's biggest trees . To better understand how to protect and preserve giant sequoias, scientists are looking at how sequoias live today, and where they lived in the past. "We're particularly concerned about … [Read more...] about Will Iconic Sequoias Fall to Climate Change?
On Tuesday, the National Oceanic and Atmospheric Administration (NOAA) released a set of data it terms the "US Climate Normals." Updated once a decade, the figures contained in the report are based on the past 30 years of weather records, and they provide a sense of what the typical weather is on a given day of the year in each of the US's states and territories. As you might imagine given the recent global temperature records, these figures show widespread warming compared to the normals of even a decade ago. They also reveal that while much of the US is getting wetter with the changing climate, California and the Southwest are in the midst of a dramatic drying trend. What’s normal, anyway? As NOAA puts it, you're most likely to come across its climate normals on a weather forecast when the projected conditions are compared to the ones typical for that location and time of year. The normals provide information on what's typical. The normals cover a period of 30 years because … [Read more...] about The new abnormal is warming up the US government’s new climate norms
Celebrated every May 5, the Mexican holiday Cinco de Mayo was originally held in memory of a famous military victory, but over the years has grown into a celebration of Latino heritage and culture. Though the COVID-19 pandemic has put a hold on many of the larger events that would usually take place, the holiday is still being celebrated across the U.S., where it is still very popular. Below are five facts about this holiday and how it is celebrated. 1. It began because of a famous battle Cinco de Mayo, which means the 5th of May in Spanish, is often mistaken as a celebration of Mexico's independence — in fact, that holiday is called Grito de Dolores (or El Grito de la Independencia) and is observed every Sept. 16. Cinco de Mayo in fact marks the anniversary of the Battle of Puebla (May 5, 1862) which took place between the Mexican and the French armies. When in 1861 Mexico stopped making repayments on its debt to France, Louis-Napoléon Bonaparte sent … [Read more...] about What Is Cinco de Mayo? History and Facts
Green sea turtles venture into the open ocean immediately after hatching on the Florida coast, and then seem to vanish for a spell — now, new tracking data shows that, after surfing the Gulf Stream northward, many turtles drop out of the current to enter the Sargasso Sea, an oasis of cozy seaweed and plentiful food. In the new study, published Tuesday (May 4) in the journal Proceedings of the Royal Society B , scientists attached solar-powered satellite tags to 21 green sea turtles ( Chelonia mydas ) of "toddler" age, meaning about 3 to 9 months old. The young turtles weighed just over 10.5 ounces (300 grams) and their shells measured about 5 to 7 inches (12 to 18.6 centimeters) long; tagging such small creatures presented a huge challenge, both due to their initial size and the fact that they grow and change shape fairly rapidly, compared with mature animals. Despite the hurdles, to better protect sea turtle populations, "we really need to get tags on some of these … [Read more...] about Young green turtles tracked to ‘lost years’ hideaway