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Travel along mountain streams, over ridgelines, and through beautiful valleys in the Aspen area while learning about mountain ecology on ACES' naturalist guided snowshoe tours. Starting on December 10th, daily snowshoe tours will be offered on top of Aspen Mountain, Snowmass Mountain, and at the Ashcroft Ghost Town. Aspen Mountain tours will meet daily at the top of the Aspen Mountain gondola at 10am and 1pm. Tickets are $59 for adults, $47 for youth and seniors, and $37 for children. Purchase tickets at any lift ticket office.
Join Aspen Center for Environmental Studies on Wednesday April 17th at 5:30pm to hear candidates for upcoming elections for Aspen City Council and Mayor of Aspen share their perspectives on the environmental issues facing our community. The conversation will be moderated by Aspen Public Radio’s Carolyne Heldman. Participants are encouraged to submit questions in advance through the RSVP feature below.
Free Members Free Non Members
4/17/2013
5:30pm Hallam Lake
Tuesdays, April 30th - June 11th Join ACES staff and community members for evenings of spring gardening at Hallam Lake. The garden is one of our favorite teaching spaces, help us make it beautiful and productive! Please wear sturdy shoes and bring your own work gloves if you have some. Snacks provided, BYOB. Please RSVP and let us know in the notes field which dates you will be attending.
5/07/2013 - 6/11/2013 Hallam Lake
5:30 pm Hallam Lake

Training Session #2
Observing Seasonal Changes: Plant Phenology and Avian Migration Project Attend a free training sessions at ACES to equip yourself with the tools you need to become a citizen scientist and participate in ACES new project, based on observations of bird migration and plant phenology (or the timing of life events of plants). The project will feed observed information to larger bodies of recorded data showing historic patterns and/or changes. Throughout the summer months our collective observations will, among other things, help illustrate changes to the ecology and climate of the upper Roaring Fork Valley.
A key component of the citizen science phenology project at Hallam Lake is Project BudBurst (PBB). PBB is a nationwide network of plant phenology observers who submit data to a centralized website where their findings are compiled and made available to the public. From scientists, to gardeners, to nature lovers and more, the data collected by PBB helps track patterns, identify changes and understand the comprehensive status of our ecosystems. Phenological data is also an important indicator of climate change; observing variations to plant life events helps to better understand the changes occurring and their future implications. PBB is run out of the National Ecological Observatory Network (NEON) a project of the National Science Foundation (NSF).
The PBB project we are undertaking at Hallam Lake will rely on staff, volunteers and community members to observe and submit data to PBB about three specific species: chokecherry, Western serviceberry and quaking aspen. ACES' Community Field Lab project will also focus on observation of bird migration events, data which similarly informs discussions about ecology and climate change.
Training session learning objectives: Participants will: a. Understand ACES' Community Field Lab project b. Learn about Project BudBurst (PBB), why we are using it, and how to participate. c. Identify and become familiar with selected bird and plant species g. Distinguish phenophases on selected plants species and discuss site variations. c. Gain a curiosity of why timing of plant life events and bird migration patterns matter to local ecology. d. Understand how phenology and bird migration patterns are related to climate change and ecological shifts. e. Enroll in PBB and contribute individually to this important body of work.
Please RSVP below. For questions please call Jim Kravitz at (970) 925-5756.
Free Members Free Non Members
4/18/2013 Hallam Lake
9 am - 11 am

Training Session #1
Observing Seasonal Changes: Plant Phenology and Avian Migration Project Attend a free training sessions at ACES to equip yourself with the tools you need to become a citizen scientist and participate in ACES new project, based on observations of bird migration and plant phenology (or the timing of life events of plants). The project will feed observed information to larger bodies of recorded data showing historic patterns and/or changes. Throughout the summer months our collective observations will, among other things, help illustrate changes to the ecology and climate of the upper Roaring Fork Valley.
A key component of the citizen science phenology project at Hallam Lake is Project BudBurst (PBB). PBB is a nationwide network of plant phenology observers who submit data to a centralized website where their findings are compiled and made available to the public. From scientists, to gardeners, to nature lovers and more, the data collected by PBB helps track patterns, identify changes and understand the comprehensive status of our ecosystems. Phenological data is also an important indicator of climate change; observing variations to plant life events helps to better understand the changes occurring and their future implications. PBB is run out of the National Ecological Observatory Network (NEON) a project of the National Science Foundation (NSF).
The PBB project we are undertaking at Hallam Lake will rely on staff, volunteers and community members to observe and submit data to PBB about three specific species: chokecherry, Western serviceberry and quaking aspen. ACES' Community Field Lab project will also focus on observation of bird migration events, data which similarly informs discussions about ecology and climate change.
Training session learning objectives: Participants will: a. Understand ACES' Community Field Lab project b. Learn about Project BudBurst (PBB), why we are using it, and how to participate. c. Identify and become familiar with selected bird and plant species g. Distinguish phenophases on selected plants species and discuss site variations. c. Gain a curiosity of why timing of plant life events and bird migration patterns matter to local ecology. d. Understand how phenology and bird migration patterns are related to climate change and ecological shifts. e. Enroll in PBB and contribute individually to this important body of work.
Please RSVP below. For questions please call Jim Kravitz at (970) 925-5756.
Free Members Free Non Members
4/15/2013 Hallam Lake
3 pm - 5pm
Celebrate Earth Day at Rock Bottom Ranch! Help spruce up the community garden, tidy animal paddocks, plant a tree or two, or simply enjoy the beauty and tranquility of the nature preserve! As the weather warms and we welcome goat kids, piglets, bunnies, and chicks, take part in a true spring cleaning! Families welcome- kids’ activities offered throughout the day. Beverages provided. Please bring: lunch, work gloves, a hat & water bottle!
Free Members Free Non Members
4/20/2013
10 am - 3 pm Rock Bottom Ranch

Julia Kumari Drapkin
Join Julia Kumari Drapkin, the charismatic young journalist leading iSeeChange, a participatory environmental reporting project based out of Colorado's North Fork Valley (in partnership with Paonia's KVNF). This project creates synergy between citizen observations, scientists, and media. Julia produces “multimedia dialogue between citizens and scientists and hopes to help listeners both understand their own experiences with the weather, and take pride in their local landscape and culture.” Julia holds a degree from Columbia University’s Graduate School of Journalism. She has worked as a reporter and producer for PRI’s The World and The Nature Conservancy, and was a Metcalf Fellow at BBC. She started her career as a photographer for the Associated Press covering the Tsunami in Sri Lanka and Hurricane Katrina.
3/05/2013
6:00 pm Hallam Lake
Aspen Center for Environmental Studies presents Sky Lab tours for all ages at the Basalt Regional Library! ACES Educators will lead 30 minute long programs about stories of the night sky through the innovative inflatable planetarium. The planetarium accommodates up to 30 people at a time; programs will be filled on a first-come first served basis. All Basalt Elementary School fourth graders will visit the Sky Lab in conjunction with their Environmental Education program taught by ACES educators at BES. Join us for a unique planetarium experience.
Free Members Free Non Members
2/06/2013
3:30 pm - 6:00 pm Basalt Regional Library
Auden Schendler, Vice President of Sustainability at Aspen Skiing Company, will speak about the realities of being "green" in today's world, shown through the lens of Aspen Skiing Company’s efforts to be the most environmentally responsible ski company in the business. Aspen Center for Environmental Studies is now home to the long-successful Tomorrow’s Voices program, founded by local teachers AO Forbes and Willard Clapper to cultivate responsible citizenship and ethical leadership in the youth of the Roaring Fork Valley.
Each year, they open up a selection of their Politics of Sustainability classes to the public. Join us on these Monday nights at 6:30pm in the auditorium of Roaring Fork High School in Carbondale for what are sure to be inspiring inter-generational conversations.
Free Members Free Non Members
3/11/2013
6:30 pm Roaring Fork High School Auditorium
Pete McBride, National Geographic photographer, will share stories and photos of his experiences floating the Colorado River from its beginning to its inglorious "end." Pete is a charismatic speaker whose powerful images tell the incredible story of the Colorado River. Aspen Center for Environmental Studies is now home to the long-successful Tomorrow’s Voices program, founded by local teachers AO Forbes and Willard Clapper to cultivate responsible citizenship and ethical leadership in the youth of the Roaring Fork Valley.
Each year, they open up a selection of their Politics of Sustainability classes to the public. Join us on these Monday nights at 6:30pm in the auditorium of Roaring Fork High School in Carbondale for what are sure to be inspiring inter-generational conversations.
Free Members Free Non Members
3/04/2013
6:30 pm Roaring Fork High School Auditorium

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