James Balog says he did n't know how fast enormous quantities of ice were vanishing . Yet the British admiralty waited until 1867 before mandating that its sailors eat limes to stay healthy . Comment: Balog says people will look back , wonder how predecessors could 've ignored global warming . Once a skeptic , convert says we ca n't afford to wait or be deluded by false information .
James Balog says he did n't know how fast enormous quantities of ice were vanishing . Comment: Balog says people will look back , wonder how predecessors could 've ignored global warming . Once a skeptic , convert says we ca n't afford to wait or be deluded by false information .