Watch live as smoke from wildfires in Canada envelopes the White House in the early hours of Thursday, 29 June. Air quality warnings have been issued in Washington, DC, and 16 other states as Canada's worst-ever wildfires continue to burn. As of Wednesday, at least 30 new wildfires broke out in Canadian forests in the last day, the Canadian Interagency Forest Fire Center said. This brings the total number of wildfires burning across the country to around 500, with half burning out of control. The National Weather Service confirmed that air quality advisories and alerts stretched from the Upper Mississippi Valley, through the Mid-West, Great Lakes, Ohio Valley and into the Mid-Atlantic. Click here to subscribe to The Independent: https://bit.ly/Subscribe-to-Independent About The Independent: Making Change Happen. The Independent is the world’s most free-thinking newsbrand, providing global news, commentary and analysis for the independently-minded. Connect with The Independent: Check out our full video catalog: null Videos, daily editorial and more: http://www.theindy.com/ Click here to get the best of The Independent daily: https://www.independent.co.uk/newsletters Like The Independent on Facebook: https://www.fb.com/TheIndependentOnline Follow The Independent on Twitter: https://twitter.com/Independent Follow The Independent on Instagram: https://www.instagram.com/the.independent Download the iOS & Android app: https://www.independent.co.uk/subscribe/app Help to support truly independent journalism. Every dollar you contribute will directly fund additional special reports and investigations from a free-thinking, award-winning newsroom you can trust - https://www.independent.co.uk/donations Subscribe to Independent Premium for exclusive content & live events: https://bit.ly/2MiOONB