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El Niño can trigger intense periods of extreme ocean warming known as marine heat waves that can devastate marine life.
Twin cyclones helped trigger massive ocean warming in the Pacific. But whether that leads to a strong El Niño is still uncertain. Here’s what you need to know.
Boating
Last winter, Lake Winnipesaukee hit a troubling milestone, its shortest ice-cover period on record. For both locals and visitors, it was a cle…