As winter descends on Mongolia's cold and polluted capital of Ulaanbaatar, toxic coal heating is turning on everywhere. An estimated one resident in 10 dies from the effects of pollution.
MOSCOW The vast and ancient Lake Baikal in Russia has a rich history, providing a home for thousands of plants and animal species and sustaining the nearby Buryat tribes going back millennia. It s the world s deepest and oldest lake, and has survived for some 25-30 million years. But its depths bu