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.
2015 – a record breaking hot year
![Hot dry, field Photo by Brandon Weekes on Unsplash](https://www.worldweatherattribution.org/wp-content/uploads/2015-heat.jpg)