Canada maps out an EV mandate. The Nissan Ariya is one of the best new EVs of the year. And the Blazer EV is already discounted. This and more, here at Green Car Reports. Want $1,000 of a Chevy Blazer EV? Just as GM’s midsize electric SUV is starting to roll out to U.S. dealerships in greater numbers, the Blazer EV is eligible for a Costco…