'Grow food on Mars': LA startups tackle climate change with inventive solutions

Dozens of startups are inventing ways to keep LA cool with products and services that aim to avert environmental disaster - and yield profits

Drought, floods, wildfires and heat waves - climate change and extreme weather events are wreaking havoc in California, especially in Los Angeles. The city has recently baked in record temperatures with a long, hot summer still stretching ahead.

It is the new normal: climate models predict the number of extreme heat days, defined as more than 95F, will triple by the middle of the century.