Madonna's postponing her tour, there's another round of airline chaos, and if you're in the Midwest, you're probably feeling like this guy in Detroit.

It's just a cloud of smoke over the entire city.

That's some of what we'll get to on the 7th

from the Washington Post.

I'm Jeff Pierre.

It's Thursday, June 29th.

Let's get you caught up with today's seven stories.

First up, smoke and extreme heat are smothering most of the country.

Air quality alerts related to smoke from Canada's historic

wildfires covered 20 states yesterday. Detroit, Chicago, and Minneapolis had some of the worst

air quality in the world. On top of that,

dangerous temperatures are hitting Texas and other southern states and in the west,

California is bracing for its first major heat wave of the year. Climate change helps shape

extreme weather events like these and they're likely to get worse in the years to come. Number two, possible human remains were recovered from the wreckage of the Titanic Sub.

The submersible imploded on a trip to the Titanic shipwreck last week, killing five people,

and parts of the wreckage were pulled from the North Atlantic yesterday.

A medical team will analyze the remains and the Coast Guard will comb through the wreckage to determine

what caused the sub's implosion.

Experts say that the debris could tell investigators vital information,

including where the Titan's material failed and how the Sub was put together.

The vessel had an experimental carbon fiber design that raised concerns

years before the implosion. The findings could prompt more regulatory oversight of the

...