A 15-year high in rice prices, prompted by India's restrictions on overseas sales, serve as a wake-up call on how climate change can disrupt food supplies. Rice prices jumped 9.8% in August, bucking falls in other staples. That followed a July decision by India, which accounts for 40% of global rice exports, to ban the overseas sale of non-basmati rice. India cited soaring domestic prices for the staple, caused by geopolitics, El Nino weather patterns and "extreme climatic conditions."

HOW CLIMATE CHANGE CAN IMPACT GLOBAL FOOD MARKETS

As colder weather sets in, Covid rates are once more rising across the Northern Hemisphere, with several new variants on the scene. The Covid pandemic extracted a terrible toll, with nearly seven million deaths worldwide. But thanks to vaccines, prior immunity and better treatments, the virus is now far more manageable. In the United States, excess deaths -- the total number of people dying for any given cause -- has been normal since spring. Here's what you need to know this fall.

HOW NEW COVID VARIANTS STACK UP AGAINST NEW VACCINES

Tech giant Apple reportedly won a bidding war by spending $5 million to acquire the film rights to a book written by Michael Lewis about the disgraced crypto mogul Sam Bankman-Fried. Titled "Going Infinite: The Rise and Fall of a New Tycoon," Lewis' upcoming book chronicles the life of SBF, once considered the "golden boy of cryptocurrency," whose network peaked at $26 billion before his empire came crashing down.

APPLE'S PLANS FOR TURNING SBF BOOK INTO A BLOCKBUSTER

What is the highest price ever paid for movie rights? Name the movie.

Tuesday's answer: Located in the Arabika Massif in Abkhazia, the Veryovkina cave is the deepest known at 2,212 meters (7,257 feet).