Placing the boulders is part of the emergency repair work on the line between San Diego and Orange counties. Passenger train service is suspended while the work goes on.
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A slight chance of showers is expected beginning this week for some parts of San Diego County.
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Some San Diego County beach areas have been deemed unhealthy for swimmers and surfers Monday because of high bacteria levels.
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Negotiations over a U.N. treaty to cut plastics have been bogged down. Environmental groups blame the oil and gas industry.
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New Zealand is a whale stranding hotspot. It's often not clear why they happen but the island nation's geography is believed to be a factor.
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Representatives of developing countries and climate activists were furious over the outcome, saying $300 billion annually from industrialized countries is far short of what vulnerable nations need to better protect themselves from climate change.
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Over 12 million cases of dengue fever were reported in 2024, the most ever. A study suggests climate change has likely played a significant role in the disease's expansion.
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In recent years, "atmospheric river" has become used much more frequently in scientific papers and in media coverage. According to experts who study climate and weather, a few reasons may explain why.
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With climate-related disasters getting more extreme, richer countries are piloting ways to compensate developing nations, since they bear the least responsibility for causing climate change.
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The city of San Diego and most of the South Bay saw majorities supporting Measure G. But that wasn't enough to counteract strong opposition in North and East County suburbs.
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San Diego's congressional delegation Tuesday praised President Joe Biden for including $310 million for the South Bay International Wastewater Treatment Plant in proposed disaster relief funding.
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