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Mar 3, 2020 · Climate change and floods—how they are connected. Floods are made more likely by the more extreme weather patterns caused by long-term global climate change. Change in land cover—such as removal of vegetation—and climate change increase flood risk. Extreme floods can be triggered by intense precipitation, longer duration, close repetition ...
- Warmer Air Leads to More Intense Precipitation
- More Precipitation Falling as Rain
- Changing Patterns of Rain on Snow
- Compounding Effects of Wildfire and Flooding
One effect of climate change is that a warmer atmosphere creates more intense precipitation events. This occurs because warmer air can hold more moisture. The amount of water vapor that the atmosphere can contain increases by about 7% for every 1.8 degrees Fahrenheit(1 degree Celsius) of increase in atmospheric temperature. Research has documented ...
In colder areas, especially mountainous or high-latitude regions, climate change affects flooding in additional ways. In these regions, many of the largest historical floods have been caused by snowmelt. However, with warmer winters due to climate change, less winter precipitation is falling as snow, and more is falling as rain instead. This shift ...
When rain falls on snow, as happened in the recent flooding in Yellowstone, the combination of rain and snowmelt can lead to especially high runoff and flooding. In some cases, rain-on-snow events occur while the ground is still partially frozen. Soil that is frozen or already saturated can’t absorb additional water, so even more of the rain and sn...
Changes in flooding are not happening in isolation. Climate change is also exacerbating wildfires, creating another risk during rainstorms: mudslides. Burned areas are more susceptible to mudslides and debris flows during extreme rain, both because of the lack of vegetation and changes to the soil caused by the fire. In 2018 in Southern California,...
- Frances Davenport
Apr 9, 2024 · As extreme rainfall and coastal flooding increase, the annual costs of flood damage to homes and buildings in Canada could grow three to five times by mid-century—amounting to over $5.5 billion—and reach as high as $13.6 billion by the end of the century (Ness et al. 2021). On July 16, 2024, in Toronto, nearly 10 centimetres of rain fell in ...
Aug 4, 2024 · Here's how expert facilitators and climate scientists and advocates say we can apply principles from conflict resolution to make those climate conversations go better, and get more of us on the ...
Feb 23, 2023 · Conversations about climate change are crucially important for mobilizing climate action, as well as for processing emotions and finding meaning in times of crisis. However, limited guidance exists on how to successfully facilitate these discussions, especially among individuals with a wide range of beliefs, knowledge levels, and opinions about climate change. Here, we describe the Talk ...
Jun 3, 2020 · Yes, there is. A new study from researchers at Environment and Climate Change Canada found that climate change has made: Rainfall more extreme. Storms with extreme rainfall more frequent. "We're ...
Nov 3, 2023 · Flash floods can happen anywhere, and low-lying areas with poor drainage are particularly vulnerable. Also caused by dam or levee breaks or the sudden overflow of water due to a debris or ice jam ...
