At a campaign rally, President Donald Trump mocked concerns about global warming, saying that oceans would rise just “[o]ne-eighth of an inch within the next 250 years.” Although Trump’s comment may have been a joke - and not intended to be a prediction of sea level rise - his figure is many times lower than scientific estimates. Trump’s remark came in Hershey, Pennsylvania, during a section of his speech bashing wind power - one of his favorite topics at rallies. This time, the president also jokingly referenced global warming, poking fun at people who are concerned about sea level rise....