World Weather Attribution

Since 2015 the World Weather Attribution (WWA) initiative has been conducting real-time attribution analysis of extreme weather events as they happen around the world. This provides the public, scientists and decision-makers with the means to make clear connections between greenhouse gas emissions and impactful extreme weather events, such as storms, floods, heatwaves and droughts.

We research and develop scientific tools and methodologies to perform timely and robust assessments of whether and to what extent human-induced climate change played a role in the magnitude and frequency of extreme weather events.

We’ve made real and significant advances in isolating the climate signal in the costly impacts of such events, in both developed and developing countries. Our partners are at the forefront of this emerging scientific field.