Chennai floods, December 2015

Raindrops phot from Pixabay / Pexels

A relentless downpour pounded Tamil Nadu’s capital city of Chennai on December 1, 2015, flooding and submerging one of India’s largest cities. The heaviest one-day rainfall in the region – as much as 494 mm (19.45 inches) – in more than a century left more than three million people without basic services.

2015 – a record breaking hot year

Hot dry, field Photo by Brandon Weekes on Unsplash

With colleagues at the University of Reading, we performed a simple analysis to assess what factors played a role in this record heat, specifically the roles of greenhouse gas emissions associated with global warming, the natural climate oscillation known as El Niño, as well as solar activity and volcanic aerosols.