"City of burning lakes: experts fear Bangalore will be uninhabitable by 2025"

"India’s Silicon Valley":

The latest incident is not the first time the lake has caught fire; it happened in May 2015. A few days later, it was in the news again for being covered in snow-like froth, which began to swirl up in the summer wind, engulfing passers-by. The froth was the result of chemical waste dumped in the lake, and was toxic enough to crack windshields, wear the paint off car hoods and exacerbate the severe respiratory issues that have plagued citizens in recent years.

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There are several invasive species like water hyacinths growing in the lake, thick enough to walk on. People dump solid waste on top of it. Because of the thickness, it creates an anaerobic environment in the water below, where methane is formed. It creates an ideal environment for catching fire.”