Redwood Forest Temp Bubble Storytelling Project.pptx

National Park Service states in an article “Water is essential for all living things on Earth, including you, the food you eat, and coast redwoods. Redwoods can drink around 160 gallons (605 liters) of water per day. In the dry summer months, the trees get water from the iconic fog that blankets the forest. Redwoods get up to 40% of their water from the fog each year!”

1. Redwood Temp Bubble Presented by Griffin Mancuso, Emma Wilson, Giancarlo Munoz, Christina Mehr Weather-related Scientific Research for a Hopeful Future

2. What is the Temperature bubble? Microclimates created by the redwoods National Park Service states in an article “ Water is essential for all living things on Earth, including you, the food you eat, and coast redwoods. Redwoods can drink around 160 gallons (605 liters) of water per day. In the dry summer months, the trees get water from the iconic fog that blankets the forest. Redwoods get up to 40% of their water from the fog each year!”

3. Water temperatures in Humboldt County Community forest entrance by the J May 2, 11:00 a.m., 50°F Lower level of Arcata Community Forest May 2, 11:30 a.m., 50°F

4. What is happening to the bubble? Climate change is increasing air and water temperatures in redwood forests Increased water temperatures negatively impact species like coho salmon Water scarcity forces redwood trees to redirect their energy to ensure their survival Photo courtesy of Bureau of Land Management of Oregon and Washington

5. Climate change on the Redwoods https://www.nps.gov/redw/learn/nature/climate-change.htm Warmer water temperatures hold less oxygen and tend to dry up creeks Coho salmon and steelhead need colder temperatures to breathe Habitat restoration - redwoods rising. Use interpretation through video to educate community on water use Reduce dependence on fossil fuels by working with communities

6. Where did all the fog go? “The degree to which redwoods rely on fog for their growth and health has some researchers very concerned. Environmental scientists James Johnstone and Todd Dawson of the University of California at Berkeley have discovered a startling trend in West Coast fog: Over the past half-century, the redwoods' environment has become 33 percent less foggy, yet another result of global climate change. Dawson projects that, in 40 to 70 years, continued diminution of coastal fog would threaten the survival of the redwoods of coastal Northern California.”

7. “New study sheds light on coast redwood climate forecast” https://www.savetheredwoods.org/blog/new-study-sheds-light-on-coast-redwood-climate-forecast/ Warmer, normal rainfall is likely within the next 15 years for redwood forests The temperature “bubble” is expected to expand 34% in northern forests and retreat from southern forests below the Bay Area Redwood growth rates have been on the rise in the last few decades

8. According to Humboldt Now - Students are Helping Redwood Forests Rise Again “Cal Poly Humboldt researchers found that redwoods have varying sensitivity to drought, and that rising temperatures may affect tree performance in unexpected ways—results that are both concerning and hopeful. Scientists from Cal Poly Humboldt conducted a rangewide analysis of coast redwood ( Sequoia sempervirens ) to examine growth trends and understand how these trees are responding to recent environmental changes. They found that redwoods have varying sensitivity to drought, and that rising temperatures may affect tree performance in unexpected ways—results that are both concerning and hopeful.”