Experts dive deep into the causes behind the Chamoli avalanche as they witness the rescue mission in progress and explain the science behind the tragedy. They expound on how climate change could continue to impact the Himalayan region in coming decades.

Witness horror and science behind the menacing cyclone and destruction caused to Western India.

Testimonies from locals and rescue forces reveal the true story and science behind the disaster.

Witness local population sharing the on ground reality of the fires, along with accounts by various agencies.

Mumbai finds itself in the grip of severe monsoon flooding each year, causing injuries, deaths and economic loss. Experts look at the emergency responses to the flooding, try to understand the underlying problems and look to the future.

In 2016, a section of an under-construction flyover fell to the streets below in Kolkata. Eyewitnesses discuss the tragedy, while experts look at the conditions that caused the disaster, as well as what lead to traffic problems in the first place.