Climate change has been exacerbating heat waves, and the problem isn't going away anytime soon. An increasingly hot planet — due largely to burning fossil fuels such as coal, oil and natural gas — means already hot regions are getting worse.

Heat doesn't just mean canceled events. It also poses a health risk, especially for children, older people and those with certain health conditions.

An intense and nearly historic weather pattern is cooking much of America under a dangerous heat dome this week with triple-digit temperatures in places that haven't been so hot in more than a decade.

The heat wave is especially threatening because it's hitting cities like Boston, New York and Philadelphia early in the summer when people haven't gotten their bodies adapted to the broiling conditions, several meteorologists said. The dome of high pressure that's parking over the eastern United States is trapping hot air from the Southwest that already made an uncomfortable stop in the Midwest.

Hundreds of firefighters backed up by aircraft were battling a wildfire burning out of control for the third day on the eastern Aegean island of Chios Tuesday, with authorities issuing multiple evacuation orders.

Towering walls of flames tore through forest and agricultural land on the island, where authorities have declared a state of emergency and have sent firefighting reinforcements from Athens, the northern city of Thessaloniki and the nearby island of Lesbos.

Oil prices are dropping further, and stocks are rallying worldwide Tuesday on hopes that Israel's war with Iran will not damage the global flow of crude, even if a tentative truce seemed to fray under fire in the morning.

The S&P 500 was 0.7% higher in early trading, following up on even bigger gains for stocks across Europe and Asia, after President Donald Trump said late Monday that Israel and Iran had agreed to a "complete and total ceasefire." The Dow Jones Industrial Average was up 289 points, or 0.7%, as of 9:31 a.m. Eastern time, and the Nasdaq composite was 0.9% higher.

Russian drones, missiles and artillery killed at least 18 civilians and injured more than 100 others in Ukraine, officials said Tuesday, as Ukrainian President Volodymyr Zelenskyy sought guarantees of further Western military aid for his country's efforts to repel Russia's invasion.

Russian forces have relentlessly blasted civilian areas of Ukraine throughout the war, which is now in its fourth year. More than 12,000 Ukrainian civilians have been killed, according to the United Nations. Ukraine has also launched long-range drones against Russia, hitting residential areas.

Israel warned its public to take shelter after detecting missile launches from Iran early Tuesday. The launches came after 4 a.m. local time in Tehran, the time Iranian Foreign Minister Abbas Araghchi said Iran would stop its attacks if Israel ended their airstrikes.

U.S. President Donald Trump said on social media Monday that Israel and Iran have agreed to a "complete and total ceasefire" to be phased in over 24 hours. It is unclear yet how the latest developments will impact possible ceasefire agreements.

U.S. President Donald Trump said on social media that Israel and Iran have agreed to a “complete and total ceasefire” to be phased in over 24 hours.

Trump said on Truth Social that the ceasefire would bring an “Official END” to war, a major change in the hostilities that follows a U.S. strike over the weekend on three Iranian nuclear sites.

President Donald Trump on Monday called for the U.S. and other oil-producing economies to pump more oil as crude prices remain volatile following U.S. strikes on Iranian nuclear facilities.

Trump urged stepped-up production as the White House sharpened its warnings to Iran against closing the Strait of Hormuz, a vital oil and gas shipping lane, in retaliation for the U.S. strikes on Iran's nuclear program.

For visitors to Athens, the ancient Odeon of Herod Atticus is the must-see theater at the foot of the Acropolis. Artists revere it for the majestic stage where legends have performed. And for the Greek capital's residents it is the touchstone of their summer cultural calendar.

The Odeon of Herod Atticus recently opened the 70th season of the annual Athens Epidaurus Festival, a cherished annual tradition for many Greeks. But this edition marks the last before the theater that's more than 18 centuries old shuts down for maintenance and restoration work that is expected to last at least three years.

Kylian Mbappe will likely return Thursday against Salzburg after being sidelined from Real Madrid's first two Club World Cup games, according to coach Xabi Alonso.

Alonso told The Associated Press, after the team's 3-1 win over Pachuca on Sunday, that he is "looking forward to have him back. We need to go day by day."