"The treaty's success depends on the maintenance of a status quo that will be disrupted as the world warms. Traditionally, Kashmir's waters have been naturally regulated by the glaciers in the Himalayas. Precipitation freezes during the coldest months and then melts during the agricultural season. But if global warming continues at its current rate, the Intergovernmental Panel on Climate Change estimates, the glaciers could be mostly gone from the mountains by 2035. Water that once flowed for the planting will flush away in winter floods.
Research by the global NGO ActionAid has found that the effects are already starting to be felt within Kashmir. In the valley, snow rarely falls and almost never sticks. The summertime levels of streams, rivers, springs, and ponds have dropped. In February 2007, melting snow combined with unseasonably heavy rainfall to undermine the mountain slopes; landslides buried the national highway -- the region's only land connection with the rest of India -- for 12 days. (...)
Water is already undermining Pakistan's stability. In recent years, recurring shortages have led to grain shortfalls. In 2008, flour became so scarce it turned into an election issue; the government deployed thousands of troops to guard its wheat stores. As the glaciers melt and the rivers dry, this issue will only become more critical. Pakistan -- unstable, facing dramatic drops in water supplies, caged in by India's vastly superior conventional forces -- will be forced to make one of three choices. It can let its people starve. It can cooperate with India in building dams and reservoirs, handing over control of its waters to the country it regards as the enemy. Or it can ramp up support for the insurgency, gambling that violence can bleed India's resolve without degenerating into full-fledged war. "The idea of ceding territory to India is anathema," says Sumit Ganguly, a professor of political science at Indiana University. "Suffering, particularly for the elite, is unacceptable. So what's the other option? Escalate."
"It's very bad news," he adds, referring to the melting glaciers. "It's extremely grim."