"Complicating the issue are the devastating effects of climate change. 
Monsoon rains have been more erratic and droughts more common, 
threatening farmer's harvests"

Srini
 Swaminathan, who took this photograph of Chembarambakkam reservoir from
 a plane, told CNN: "I have been living here since 1992 and have never 
seen anything like this before."
India's sixth biggest city is almost entirely out of water
New Delhi  (CNN)The floor of the Chembarambakkam reservoir is cracked open, dry and sun-baked. About 25 kilometers (15.5 miles) away, in Chennai, India's sixth largest city, millions of people are running out of water.
Chembarambakkam
 and the three other reservoirs that have traditionally supplied Chennai
 are nearly all dry, leaving the city suffering from an acute water 
shortage, said Jayaram Venkatesan, an activist in the city.

Due
 to an inability to collect sufficient rain water combined with low 
groundwater levels, the Tamil Nadu state government has been struggling 
to provide water to residents. 
With
 the reservoirs dry, water is being brought directly into Chennai 
neighborhoods in trucks. Every day, hundreds of thousands of residents 
have no choice but to stand in line for hours in soaring summer 
temperatures, filling dozens of cans and plastic containers. 
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WATER CRISIS TIED TO CLIMATE CRISIS