Wetter Weather Can Intensify Wildfire Risk

Wildfires and Climate Change

Main Themes:

• Climate Change Fuels Wildfires: Warmer temperatures, drought, and a "thirsty" atmosphere create ideal conditions for larger, more frequent, and more severe wildfires.
• Wildfires Exacerbate Climate Change: Fires release massive amounts of carbon dioxide and destroy carbon sinks like forests, contributing to further warming.
• Expanding Wildfire Season: The traditional wildfire season is extending, with significant fires occurring even in winter months.
• Widespread Impacts: Wildfire smoke impacts air quality and public health far beyond the immediate fire zone.
• Adapting to a New Reality: Communities need to adapt to a future of more frequent and intense wildfires through prevention, mitigation, and building resilience.

Key Facts & Ideas:

Climate Change and Wildfire:

• Climate change has doubled the area burned by wildfires in the western U.S. since the 1980s. (NOAA)
• "Weather whiplash," the rapid shift between wet and dry periods, is intensifying globally due to climate change, exacerbating fire risk. (Washington Post)
• California now has 78 more annual “fire days” than 50 years ago. (CalMatters)
• Drought-stressed trees are more susceptible to insects and diseases, increasing fuel load. (Environmental Defense Fund)
• Shrinking snowpacks and earlier snowmelt further dry out forests. (Environmental Defense Fund)
• Lightning-sparked fires are becoming more common due to climate change. (CalMatters)

Wildfire Impacts:

• Wildfires release massive amounts of pollutants, including black carbon, which is thousands of times more damaging than greenhouse gases. (CalMatters)
• Smoke from wildfires can travel hundreds of miles, affecting air quality and public health even in areas far from the fires. (Covering Climate Now)
• Wildfire smoke is particularly harmful to children. (Covering Climate Now)
• Wildfires destroy forests, which act as carbon sinks, further contributing to climate change. (Covering Climate Now)
• Intense fires can burn deep into the soil, creating risks for future mudslides and flooding. (Covering Climate Now)

Adaptation and Prevention:

• Communities need to adapt to the “Pyrocene,” the age of fire, through fire-resistant building materials, defensible space around homes, and updated building codes. (CalMatters)
• Utilities need to improve infrastructure and vegetation management to prevent power lines from sparking fires. (CalMatters)
• Prescribed burns can help reduce fuel loads and promote healthy forest ecosystems. (Environmental Defense Fund)
• Better forest management and community planning are crucial for reducing wildfire risks. (Environmental Defense Fund)
• Public awareness and education about wildfire risk and prevention are essential. (Covering Climate Now)