An unexpected way for climate change to kill (in India, at least)

I hadn't heard this before, from an interview about India suffering under climate change:

Now let’s come to violence. What is really startling was the dowry deaths. The study I’ve quoted found that many people treat dowry deaths as income smoothing, and that’s a very provocative way of putting it…you kill your wife and marry a new wife and have an income when crop income goes down because of the drought. But they’ve seen that correlation. It’s something to keep in mind.

Meanwhile, I hadn't even noticed that parts of India have been having a heatwave:

Northern India, like neighbouring Pakistan, is in the grip of a heatwave, with temperatures reaching 47C. A blanket of hot air has settled on Delhi clearing pavements across the usually busy capital. India is particularly vulnerable to temperature increases associated with climate change. Since 1992, about 25,000 Indians are estimated to have died because of heatwaves. Yet the country is quietly optimistic that it can prevent at least some of those deaths.