Ecologist Sergey Zimov has created Pleistocene Park, a 14,000-hectare experiment testing whether hairy beasts can bring back ancient grasslands and prevent carbon-rich permafrost from thawing.
A father-son team in Siberia wants to bring millions of animals to the tundra to preserve the permafrost, which has more than a trillion tons of carbon frozen in the soil.
In the past four years, the Russian government has systematically engaged in a crackdown on the LGBT community and NGOs, silencing AIDS awareness.
Nikolai Ponomarev-Stepnoi dedicated decades of his career to a U.S.-Russian effort to prevent nuclear proliferation. Today, the retired nuclear scientist is glumly watching it all fall apart.
The Russian president’s intervention in Syria is driven by fear of Islamic extremism among his country’s own Muslim minority. But rather than squelching the threat, it’s poised to make it worse.
Native people in Alaska and Russia store their whale meat and other traditional foods in permafrost. Their underground freezers are thawing, causing food problems.
Vladimir Putin's sudden interest in Syria makes Russia a global player again.
Pulitzer Center senior adviser Marvin Kalb is a seasoned analyst of Russian politics. Here's an excerpt from his latest book, "Imperial Gamble: Putin, Ukraine, and the New Cold War."
PBS NewsHour correspondent Margaret Warner sits down with Marvin Kalb, author of "Imperial Gamble" to discuss Vladimir Putin’s world view and his game plan for Ukraine.
While Putin says he’s getting friendly signals from the U.S., he’s planning to topple the Ukraine government.
As the war in Ukraine slips from the headlines, can Russia declare victory?
A deceptive late-summer pause has settled over the Ukraine crisis. At least, in the coverage of it. For many weeks now, the war in the Donbas has slipped off the front page.
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