Scientists ca n't for certainty whether global warming is behind wacky weather . A heat wave and a drought emergency befall Canada . But the Northeast and Midwest see coldest temperatures in last week . Have Mother Nature and Ol ' Have Mother Nature and Ol ' Man Winter gone Jekyll-and-Hyde on us ?
Scientists ca n't for certainty whether global warming is behind wacky weather . A heat wave and a drought emergency befall Canada . But the Northeast and Midwest see coldest temperatures in last week . Have Mother Nature and Ol ' Man Winter gone Jekyll-and-Hyde on us ?