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Red-Shouldered Hawk sitting in a tree
Membership Event: Hawk Hill Exploration with the Golden Gate Raptor Observatory
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Explore Hawk Hill during peak migration season with Golden Gate Raptor Observatory Director Allen Fish.

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Alcatraz Island at Sunset
Membership Event: Behind the Scenes Look at Alcatraz Island
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Travel with us to Alcatraz Island, learn about it's exciting future, and get an insider's look into the history of former maximum-security prison.

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Volunteers work with manzanita cuttings
Presidio Nursery
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Learn to grow and care for native plants while helping to preserve and restore your national park.

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Volunteers work with manzanita cuttings
Presidio Nursery
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Learn to grow and care for native plants while helping to preserve and restore your national park.

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A group collects seed in a grassland. A volunteer holds a tray of seeds.
Marin Headlands Nursery
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Learn to grow and care for native plants while helping to preserve and restore your national park.

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RYC Rollin': Part 3

2:03 pm: Stress release—and all other motivating factors—are waning. One hour into the afternoon session, the crew members are slowing considerably; some are leaning on their weed wrenches, some are sitting on the grass; some are declaring their need for naptime. “I’m having an existential crisis!…

Sunset at Mt. Tam with clouds, rocks and mountains visible
One Tam Virtual Summit on Climate: Change and Resilience
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Join us for Day 2 of the 2020 One Tam Virtual Summit on Climate: Change and Resilience. This October, we'll explore a range of topics including climate change impacts in Marin, the work of One Tam and others to address them, intersections with public health and equity, the 2020 fire season that is deeply affecting the Bay Area, and more.

Register
Sunset at Mt. Tam with clouds, rocks and mountains visible
One Tam Virtual Summit on Climate: Change and Resilience
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Join us for Day 3 of the 2020 One Tam Virtual Summit on Climate: Change and Resilience. This October, we'll explore a range of topics including climate change impacts in Marin, the work of One Tam and others to address them, intersections with public health and equity, the 2020 fire season that is deeply affecting the Bay Area, and more.

Register
California Lilac, Ceanothus thyrsiflorus
Little Changes, Big Problems? Why Phenology Matters

Repeated over time, warm and dry winters alter the timing of natural events such as flower blooms, and those changes can produce a ripple effect throughout the food web. Learn more about phenology—the study of seasonal phenomena and how they’re affected by climate change.

Sunset at Mt. Tam with clouds, rocks and mountains visible
One Tam Virtual Summit on Climate: Change and Resilience
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Join us for Day 4 of the 2020 One Tam Virtual Summit on Climate: Change and Resilience. This October, we're exploring a range of topics including climate change impacts in Marin, the work of One Tam and others to address them, intersections with public health and equity, the 2020 fire season that is deeply affecting the Bay Area, and more.

Register