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Gray whales have historically been a rare sight in the San Francisco Bay. They migrate over 10,000 miles from Mexico's Baja California to the Arctic region, seldom stopping in the busy shipping corridor for prolonged periods. However, in recent years, this has changed in a dire way.A new study published in the journal Frontiers in Marine Science has found that gray whales in the bay have been dying at alarming rates, largely due to collisions with vessels. Eastern North Pacific (ENP) gray whales began to appear more frequently in the well-trafficked maritime corridor around 2018.According to researchers, at least 18% of gray whales that entered the bay from 2018 to 2025 have died. They determined that for more than 40% of the whale carcasses, the cause of death was blunt force trauma consistent with vessel strikes, prompting calls for renewed efforts to help avoid more fatal collisions.“It was historically very unusual for them to enter the bay, especially for longer amounts of time or consistently year after year,” said Josie Slaathaug, lead author of the study. There are whale subgroups known to hunt for food south of the Arctic, but a majority of the recently spotted whales feeding in the bay were not a part of these foraging clusters.A wave of new whale presence had not been observed in the waters since the late 1990s. Researchers have theorized that Arctic warming is disrupting food availability for the whales, driving them to hunt in new places such as the bay, although it remains unclear what exactly they may be eating there.Their potential new feeding corner, though, is a major shipping route. The true mortality rate for whales in the bay may be higher, hovering somewhere from 40% to 50%, Slaathaug said.In recent years, there have been several reports of dead whales that wash up on Bay Area beaches. The ENP gray whale population has been in decline due to malnutrition and starvation from climate-driven prey shifts in the Arctic. The Southwest Fisheries Science Center estimated a population total of about 13,000 whales, its lowest count since 1970.“It’s not unique to their migratory corridor that a lot of whales are dying,” Slaathaug said. “What is unique about San Francisco Bay and this study was that there was such a clear emerging cause of death.”Some local efforts are under way to reduce vessel collisions. The Marine Mammal Center has developed a program called Whale Smart, to educate vessel operators in the San Francisco Bay on how to interpret whale behavior to avoid close encounters.In Alaska, where vessels also pose a threat to the whale population, one fleet company partnered with WhaleSpotter, a company that uses AI and thermal imaging to detect the presence of whales, so they can change course well in advance.Last year, the Center for Biological Diversity, a conservation group, sued the US Coast Guard, which regulates vessel traffic off the California coast, for failing to analyze how vessel routes may harm whales and sea turtles.“This most recent study about the gray whales reaffirms that we have way underestimated the problem and we are not managing human activities well enough to avoid the whales,” said Catherine Kilduff, senior attorney at the center.Federal action is needed to reduce the fatal collisions, Kilduff said. According to the Endangered Species Act, the coast guard should be consulting with the National Marine Fisheries Service when setting shipping lanes to assess impact to marine wildlife.Kilduff also suggested mandatory speed limits for vessels. “There are voluntary speed reductions on the west coast, but there is evidence that those aren’t effective. The compliance rate isn’t high enough,” she said.A 2022 study co-authored by the National Oceanic and Atmospheric Administration found that the average speeds of large vessels had decreased from 2010 to 2019 in voluntary speed reduction zones. But, researchers determined that the cooperation rate of roughly 50% was lower than the amount needed to reduce vessel strike-related mortality to a level that maintains a sustainable whale population.“These whales are using the oceans in such a sophisticated way. We can learn so much from them, and if we can figure out ways to avoid killing them, I know that they’ll come back to healthy population levels,” Kilduff said.

House Republicans have shot down a bill passed by the Senate that would have resumed funding for federal agencies tasked with airport screenings, exacerbating a standoff that has resulted in chaos at airports as workers go without pay.In the early hours of Friday morning, the Senate unanimously passed a bill that would finance most agencies under the Department of Homeland Security (DHS), including the Transportation Security Administration (TSA), the US Coast Guard, and the Federal Emergency Management Agency (FEMA).However, Republican House Speaker Mike Johnson confirmed he would not bring the Senate-passed bill to the floor for a vote, slamming it as a “joke”. Johnson suggested that the House could advance its own bill fully funding all DHS agencies for two months.President Donald Trump signed an executive memo directing DHS to work with the White House budget director to find a way to pay TSA employees, who have gone without pay since the partial government shutdown began in mid-February.“America’s air travel system has reached its breaking point. This is an unprecedented emergency situation,” Trump wrote in the memo, blaming the impasse on Democrats.Democratic lawmakers have slammed Republicans for rejecting bills that would ensure that TSA employees are paid while continuing to withhold additional funds from immigration enforcement.

Mexico's Navy and the United States Coast Guard are conducting a search for two missing sailboats that were part of a humanitarian convoy to Cuba. The vessels, which departed from Isla Mujeres in Mexico on March 20, were expected to arrive in Cuba on Tuesday or Wednesday of this week. Nine people were on board the two sailboats, which were organised by the Nuesta America Convoy. The convoy has accused the US government of 'strangling' Cuba by cutting off fuel, flights, and critical supplies for survival. Cuban President Miguel Diaz-Canel expressed anxiety about the fate of the boats, stating that Cuba is doing everything possible to search for and rescue those on board. The US Coast Guard initially reported that the boats had been located, but later retracted the statement. Search efforts are currently being led by Cuba and Mexico, but the US Coast Guard has stated that it is prepared to provide support if requested. The convoy comes in response to worsening humanitarian conditions in Cuba, which has largely been cut off from foreign oil supplies since January. The US has imposed an oil blockade on Cuba, which has led to a humanitarian crisis on the island. The blockade was tightened by the Trump administration, which has signalled its desire for regime change in Cuba. Mexico and other countries have increased their humanitarian aid to Cuba amid the crisis, with Mexican President Claudia Sheinbaum sending ships laden with supplies. The Nuestra America Convoy initially sent several ships to Cuba last Friday, with one arriving safely in Havana on Tuesday with 14 tonnes of food and medicine.