The 75-year-old Gian-Franco Kasper spoke of "so-called climate change" and said he would rather deal with dictators than argue with environmentalists.
Climate change and deforestation are the leading causes responsible.
Women are more likely than men to be killed in natural disasters, and more likely to become refugees after drought and famine.
Environmentalists and oil companies have been on edge since the Supreme Court heard oral arguments in the fall.
Colorado's hot summer days are spilling out of their regular timeframe. They are starting earlier (June) and staying later (September).
When winter comes to Denver, so do giant flocks of Canada geese.
Climate change is big. For some, the little lagomorphs can be a way to grasp its reality.
Paul Bodnar of the Rocky Mountain Institute attended the summit in Poland as part of the U.S. delegation.
The president of Xcel's Colorado operations answered questions about the road to come.
U.S. District Judge Brian Morris is presiding over a Thursday hearing on whether the moratorium should be reinstated.