"Canadian Wildfire Smoke Triggers Air Quality Alerts Across US"

Tens of millions of people in the US were under air quality alerts on Wednesday as smoke from Canadian wildfires drifted south, turning the sky in some of the country’s biggest cities a murky brown and saturating the air with harmful pollution. Greenhouse gas emissions have reached an all-time high, threatening to push the world into “unprecedented” levels of global heating, scientists have warned. Edward Snowden has warned that surveillance technology is so much more advanced and intrusive today, it makes that used by US and British intelligence agencies he revealed in 2013 look like “child’s play”. The US House of Representatives has been forced to postpone all votes until next week, paralyzed by a revolt against its Republican speaker, Kevin McCarthy, by ultra-conservative members of his own party. Canada’s ongoing wildfire season is a harbinger of our climate future, experts and officials say.