The last couple of years have certainly felt unusually hot in many parts of the U.S., but are they really all that unusual?
Many people wonder whether a warming climate is turning up the temperature or whether it's all just part of the normal variation in the weather. Among scientists, there's a growing view that these latest heat waves are indeed a result of climate change.
In July, the financial fortunes of the presidential candidates continued along their new trajectories, with Republican Mitt Romney's money-raising efforts outpacing President Obama once again.
Indeed, groups supporting Romney raised one-third more than Obama's re-election effort for the month.
Romney, the all-but-official Republican nominee, actually collected less in July than he had in June, but only slightly. His campaign announced Monday that its overall take for July was $101.3 million.
Egyptian President Mohamed Morsi (shown here July 2) has said that he'll restore the country's security within his first 100 days in office.
Credit Uriel Sinai / Getty Images
Militants drove two armored vehicles through a security fence into Israel from Egypt on Sunday, leaving 16 Egyptian soldiers dead and destroying two armored vehicles. An Israeli soldier inspects the wreckage of one of the Egyptian military trucks at a base in Kerem Shalom, Israel.
The bodies of 16 slain Egyptian soldiers are being prepared for burial, a day after 35 gunmen ambushed their border post in the Sinai Peninsula. The incident in northern Sinai is proving to be the biggest challenge for Egyptian President Mohammed Morsi since he assumed office about a month ago.
Dairy cows feed at Heins Family Farm near Higginsville, Mo. Fans and misters keep the barns cool during this summer's record temperatures.
Credit Courtesy of the University of Missouri
The new smartphone app Thermal Aid can help farmers detect the threat of heat stress in cows.
Credit Scott Pham for NPR
Herd manager Chris Heins greets a calf at his dairy farm near Higginsville, Mo. It will be about two years before a calf like this one is ready to be milked, so keeping them comfortable and healthy is a top concern.
When it's hot and humid, you probably don't want to move much and aren't very hungry. The same goes for cows; but when they don't eat, farmers lose money.
Researchers at the University of Missouri think they can help avoid those losses. They've produced a new mobile app that can detect the threat of heat stress in cows using nothing more than a smartphone.