US National Park Service

The U.S. National Park Service plans to launch 850,000 fireworks in Washington for the nation’s 250th birthday, with internal documents warning of hazardous pollution levels. Scientists highlight risks from soot, heavy metals, and perchlorates, while the EPA stated it does not track air quality impacts for the event. Researchers express interest in studying the environmental effects but face logistical challenges.

Extreme heat is expected at Grand Canyon National Park, with temperatures reaching 110°F, following three hiker deaths in heat-related incidents. The National Weather Service issued an extreme heat watch, and the National Park Service advises avoiding midday hikes. A wildfire evacuation also occurred in Oak Creek Canyon due to dry, hot conditions.

Three hikers died from apparent heat-related illnesses in the Grand Canyon's inner canyon over two separate days, with temperatures exceeding 109°F (43°C) in the shade. The victims, aged 72, 67, and 68, were found on the South Kaibab and North Kaibab Trails, and park officials urged hikers to avoid trails during peak heat hours. Investigations into the deaths are ongoing.

Three hikers died from suspected heat-related illnesses in the Grand Canyon's inner canyon over two separate days. Temperatures in the area exceeded 109°F (43°C) during midday hours, and all three hikers succumbed before rescue crews could reach them. The National Park Service warned hikers to avoid trails between 10 a.m. and 4 p.m. due to rising heat-related illnesses.

Three hikers died from suspected heat-related illnesses in the Grand Canyon's inner canyon over two separate days, with temperatures exceeding 109°F in the shade. The U.S. National Park Service warned hikers to avoid trails between 10 a.m. and 4 p.m. due to rising heat-related incidents.

A hiker named Daniel Crago was attacked by a grizzly bear on the Grinnell Glacier Trail in Glacier National Park, sustaining severe arm injuries requiring multiple surgeries. He is seeking financial assistance for medical expenses through a fundraiser, with excess funds to be donated to the U.S. National Park Service.

Robin Pendery, a park ranger, died after falling into a crevasse on Denali, Alaska's Mount McKinley, while on climbing patrol. Rescue efforts were initiated, but she did not survive.

Robin Pendery, a park ranger, died after falling into a crevasse while on climbing patrol on Mount McKinley, also known as Denali in Alaska. The US National Park Service reported that immediate rescue efforts were unsuccessful.