Axios

All national parks will waive admissions fees on Saturday, making 84 million acres of nature more accessible to the public.

Why it matters: National Public Lands Day is one of five days when the National Park Service offers free entrance.

Just days away from summer's end, Canada's worst wildfire season on record isn't letting up.

Why it matters: The fires have forced thousands of people to flee their homes and likely caused billions of dollars in damages and economic losses.

The U.N. Climate Ambition Summit on Wednesday marked a potential turning point in the global effort to limit the severity of climate change.

The big picture: For more than three decades, world leaders have gathered to discuss the increasing urgency of this issue. Yet there has been staunch resistance to centering those conversations around the biggest cause of climate change: burning fossil fuels like coal, oil and gas for energy.

The White House is cobbling together a program under existing powers to bring young people into low-carbon energy and climate resilience jobs.

Driving the news: Officials just unveiled the "American Climate Corps." It's an executive branch stab at the New Deal-inspired "Civilian Climate Corps" idea, which the White House unsuccessfully urged Congress to create and fund with billions of dollars in what became the Inflation Reduction Act.