Why California’s Giant Redwoods Are Struggling in Heat
California’s iconic coast redwoods ( Sequoia sempervirens ) have stood as silent guardians of the Pacific Northwest for thousands of years. Renowned as the tallest living organisms on Earth, these ancient giants have weathered centuries of environmental shifts, forest fires, and historical droughts. However, groundbreaking scientific research highlights an alarming new vulnerability: unprecedented heat waves are directly impairing the trees' ability to breathe, photosynthesize, and survive. The Silent Heat Crisis Facing California’s Redwoods For decades, researchers believed that redwoods were largely buffered from extreme climate shifts due to their unique coastal habitat. Coastal fog, cool ocean breezes, and deep root networks provided an ideal microclimate where temperatures historically averaged a mild 59°F (15°C). But as global climate patterns shift, high summer temperatures are reaching deep into coastal sanctuaries, exposing these forest titans to heat levels well...