“It is my responsibility to empower my audience to know more about climate change, in a way that people not only understand it but accept it from a trustworthy source.” – John Morales, ClimaData founder & longtime meteorologist in Miami
Human-caused climate change is making extreme weather more frequent and more intense. Examples include more excessive heat, longer and more frequent droughts, more rapidly strengthening hurricanes, and heavier downpours. When reporting on extreme weather, it’s essential to explain the climate connection so audiences understand how the warming planet is changing their lives.
Increasingly, scientists are able to identify the size of climate change’s fingerprints on a given extreme weather event through attribution science. For example, 2022’s deadly heatwave in India was made 100 times more likely due to climate change, according to scientists.
Even in the absence of explicit attribution data, it’s accurate to say that climate change is making extreme weather more common and more severe. Here’s some sample language for making the connection:
- Scientists agree that climate change drives extreme weather like today’s [high temperatures].
- [Heatwaves] like this one are now more common and more intense as a result of human-caused climate change/in a warming world.
- Human-caused climate change isn’t solely to blame for extreme weather, but it supercharges normal weather patterns, like steroids.
- After scientists study and publish the direct role of climate change: “Human-caused climate change made these conditions more than [number] times as likely. In other words, the conditions would be nearly impossible in a world without carbon pollution.” – Climate Central Shift Index
Examples in the News
Check out these examples of journalists nailing the connection, simply and effectively.
In India and Pakistan: “‘There is no doubt that climate change is a huge game changer when it comes to extreme heat,’ said [Dr. Friederike Otto, of Imperial College London and World Weather Attribution.] “Every heatwave in the world is now made stronger and more likely to happen because of human-caused climate change.” – Damian Carrington, environment editor at the Guardian
In the Western US: “Fueled by climate change, the first major heat wave of the summer has seized the western United States, toppling records and threatening lives.” – Sarah Kaplan, climate reporter at The Washington Post
In the Southwest US: “It’s no secret: Our planet is warming. That includes Phoenix and Arizona, coming off the hottest summer on record last year. … Those changes [are] already impacting our state’s water supply. The Bureau of Reclamation will declare water shortages along the Colorado River this weekend.” – Jorge Torres, meteorologist & climate reporter at KNXV-TV
In East Africa: “A group of scientists have concluded that a devastating drought in the Horn of Africa, where tens of millions of people and animals have been pushed into starvation, would not have happened without the influence of human-caused climate change… While climate change has had only a minimal effect on rainfall, the researchers said, increased heat has forced more evaporation from plants and soils, drying them out. This drying effect would not have happened without climate change, the scientists said.” – Georgina Gustin, reporter at Inside Climate News
Rainfall and Flooding
On heavy rain: “How does climate change affect heavy rain? It all starts with the release of greenhouse gasses like carbon dioxide and methane. As humans keep burning fossil fuels, the atmosphere gets hotter. That hot air holds more water vapor, and so when it rains, it rains harder.” – Rebecca Hersher, climate desk correspondent at NPR
Flooding in Pakistan: “A third of the country underwater. More than 1,000 people killed. … Experts and local officials have drawn a direct line to human-made climate change, saying it illustrates how countries with the lowest contributions to the global crisis are becoming increasingly vulnerable to its effects.” – Mushtaq Yusufzai, Rhoda Kwan, and Evan Bush for NBC News
On hurricane season 2023: “A big contributor to a more active hurricane season is hotter ocean temperatures and rising sea levels, according to Xubin Zeng, a researcher at the University of Arizona who leads the forecasts each year. ‘With global warming there will be more water vapor over oceans, and water vapor is a fuel for hurricanes,’ said Zeng. ‘That means on average we expect to see more hurricane activity, not necessarily in terms of the [total] number but in terms of the major hurricanes.’” – Siri Chilukuri, environmental justice fellow at Grist
Hurricane Ian: “Climate change is likely also contributing to hurricanes moving more slowly, increasing the duration of winds, storm surge and rainfall that leads to flooding near the coast as well as inland. ‘This has recently resulted in tropical storms and hurricanes having major water impacts, even without being a major hurricane — Category 3 or stronger — on the wind scale,’ [Dr. Richard] Knabb [director of NOAA’s National Hurricane Center] said.” – Gina Martinez for CBS News
Check out these reporting tools for help making the climate connection to extreme weather.
Climate Central’s ‘Climate Shift Index,’ a tool to help journalists identify the impact climate change is having on local temperatures worldwide.
World Weather Attribution provides assessments in real-time as extreme weather events unfold across the globe. Journalists can cite this data to help audiences understand the role climate change is playing in the likelihood and severity of the event.
CCNow’s ‘Extreme Weather’ reporting guide breaks down how climate change is influencing specific weather events with links to sample stories and expert sources.
SciLine’s extreme weather guides are designed for US journalists with ready-to-use facts (and pitfalls to avoid) for explaining the climate connection. With a large rolodex of top scientists, SciLine also connects journalists with climate experts to offer context on extreme weather.
You’ve got this! Remember, an extreme weather story that doesn’t mention climate change is incomplete and potentially even inaccurate. The good news? Making the connection is as easy as it is necessary.