Why is turbulence increasing? Rougher skies may be from climate change, scientists say

We learned this week the outcome of Canada’s gunpoint re-negotiation with the United States over revenue from the new Gordie Howe International Bridge, an impressive $6.4-billion cross-border span that Canada paid for and is now finally able to open for traffic on Monday. The reality of the forced amendments — hammered out under threat from U.S. President Donald Trump who demanded changes to a long-standing binational contract at the eleventh hour — is not so much that it makes the new bridge a terrible deal for Canada, it’s that the changes made a bad deal even worse, according to a...