A sweaty Fourth of July ahead for the US as extreme heat descends on 20 states

As the US gears up for Independence Day celebrations, a severe heat wave is affecting around 20 states, prompting warnings from the National Weather Service. This extreme heat could disrupt festivities from the East Coast to the Midwest. The situation underscores the growing concern about climate change's impact, with hotter temperatures becoming increasingly common. Officials are urging people to stay hydrated and take precautions to avoid heat-related illnesses.