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While nations wrangle over a new global treaty on climate change, the question on many minds is: What happens next?

Key portions of the Kyoto Protocol are set to expire at the end of 2012. But many of the world's major greenhouse gas emitters have already set national targets to reduce emissions, and they're forging their own initiatives to meet those goals.

To become a cab driver in London, you have to acquire "The Knowledge," which is their fancy way of saying that you have to memorize all the streets in London. It's quite a process that takes most three to four years to complete.

Now, scientists have found that studying for the test makes your brain bigger. The U.K. Press Association reports:

Cookie dough may be one of the joys of the holiday season, but it's dangerous, at least for people who nibble it raw.

What's it like to perform with a ghost?

"There was no pianist breathing or cueing me," cellist Zuill Bailey says. "The good news is that he was very consistent." Soprano Isabel Bayrakdarian adds, "It's absolutely true — it takes a little bit of adjusting."

Bailey and Bayrakdarian are talking about their accompanist: the late — very late — Manuel de Falla, who died in 1946. With the help of new recording technology, the two have performed de Falla's Seven Popular Spanish Songs for a new release, The Spanish Masters.

Back in the 1930s, Boyd Lee Dunlop taught himself to play music on a broken piano left out on the streets of Buffalo, N.Y. Only half the keys worked.

He also taught his little brother Frank to play the drums while they were growing up. Frankie Dunlop went on to record with Thelonious Monk and Charles Mingus, among other jazz greats. Boyd Lee Dunlop went to work in the steel mills and rail yards of Buffalo, occasionally playing piano at local clubs.

In an unusual move, the Russian government announced today will allow the opposition to host a massive protest in Moscow this weekend.

RIA Novosti, the government's official English-language outlet, said the protesters will be allowed to remain the streets for four hours. RIA Novosti adds:

We were immediately struck by this picture:

It's of Wanti Dodo, 93, an Indonesian woman who lost her husband in a 1947 massacre. Dodo was in the audience in Rawagede, West Java when the Netherlands offered an official apology to Indonesia, today.

The Dutch ambassador to Indonesia Tjeerd de Zwaan apologized for the massacre that killed at least 150 boys and men. The Jakarta Globe provides a bit of history:

Lynn Nearly talks to sportswriter Stefan Fatsis about the busy baseball off-season. St. Louis slugger Albert Pujols is moving the Los Angeles Angels, the Marlins tweak their image and a pitcher in Japan might inspire a bidding war.