April 22 will mark the 38^th celebration of Earth Day. This event was conceived by its founders – including Columbia University trustee and Barnard '59 alumna Marilyn Laurie – as a grassroots demonstration of support and concern for the environment.

Especially on campuses across the country, Earth Day activity has swelled into Earth Week, with thousands of participants taking time to educate themselves on the increasingly complex issues of sustainability and figure out their personal responsibilities and contributions to a sustainable universe.

Here at Columbia, the following schedule lists Earth Week activities sponsored by EarthCo on the Morningside and Barnard campuses, by the Students for Environmental Action at the Mailman School of Public Health and the College of Physicians and Surgeons on the CUMC campus, The Earth Institute at Columbia University, SIPA, SEAS, and environmental science departments at Barnard and Columbia Colleges.

FRIDAY, APRIL 13
Sidewalk-Slogan Writing on Behalf of the Environment: Columbia University Medical Center and CUMC campus
To participate, meet at 7:30 a.m. at W. 169^th St. and Haven Ave.

MONDAY, APRIL 16
Doors open for buffet supper at 6:30 p.m.; presentation begins at 7 p.m.
Keynote address focused on ethical issues and values regarding environmental action: "Balancing Needs: Global Warming, Economic Development, and Energy Security"

Presenters:
Peter Eisenberger, Professor of Earth and Environmental Sciences; former Director, Lamont-Doherty Earth Observatory
Graciela Chichilnisky, UNESCO Professor of Information and Resources; contributor to the Kyoto Protocol

TUESDAY, APRIL 17
Lerner 568, noon-1 p.m.
Discussion and pizza/pasta lunch
"Simple Things You Can Do to Help the Environment"
Discussion leaders: Members of Eco-Reps, an undergraduate organization committed to campus sustainability efforts

James Room, Barnard Hall, 7 p.m.
The Wedge Game
Gather your team of 4-7 members to compete in finding the most economic and feasible solutions to climate change by 2010. The winning team will receive a $100 gift certificate to Whole Foods. The next two top teams will receive environmental gift baskets. E-mail ye2124@columbia.edu to register your team! (No problem if you want to come solo. There'll be a group waiting for you to join.)

WEDNESDAY, APRIL 18
Room 1501, International Affairs Building, 9 a.m.-noon
Final workshop with students from the MPA in Environmental Science and Policy
Join the students in the Workshop in Applied Policy Analysis who have worked this semester with real-life clients on a variety of local and international environmental policy concerns clients are facing.

Room 918, International Affairs Building, 7 p.m.
"Environmental Governance in China: Changes and Challenges"
Professor Guobin Yang will be sharing his research and insights in the state of environmental governance in China today. How has China worked to reconcile economic growth and environmental protection? What difficulties does the government face? Topics of discussion will include the role of NGOs, international pressures, changing policy measures as well as the effect this would have on China's civil society

THURSDAY, APRIL 19
Lehman Lawn, Barnard Campus, 11 a.m.-3 p.m.
Environmentally friendly restaurants, clothing stores and other organizations will display their products and explain how their companies help the environment. They'll also discuss ways you can make your own lifestyle environmentally conscious.

Room 1118, 11^th floor, Middle East Institute, International Affairs Building, noon-2 p.m.
Africa Brown Bag Lecture Series
"Index Insurance for Smallholders in Malawi"
Presenter: Daniel Osgood, Associate Research Scientist in Economic Modeling and Climate, International Research Institute for Climate and Society, The Earth Institute Sponsored by The Earth Institute at Columbia University and the Institute of African Studies, School of International and Public Affairs

Low Library, Trustees Room, 2:30 p.m.- 4:00 p.m.
Earth Institute Office of Education Programs Climate Event
"Why Are Weather and Climate Forecasts So Good?: A Historical Perspective"
Presenter: Chet Ropelewski, Director of Climate and Environmental Monitoring
The International Institute for Climate and Society

James Room, Barnard Hall, 4 p.m.- 7 p.m.
2007 Environmental Sciences Senior Thesis Poster Session
Barnard, Columbia College and School of Engineering seniors majoring in environmental sciences will present their thesis projects in poster form.
Hosted by Barnard Environmental Science Department and the Columbia College Departments of Earth and Environmental Science, and Ecology, Evolution and Environmental Biology with support from the Office of the Provost at Barnard College and The Earth Institute at Columbia University

Schermerhorn Ext. 1018, 8 p.m.
Dinner and a movie, co-sponsored with the Columbia University Environmental Biology Society
"Cane Toads: An Unnatural History!"
A 1988 biodiversity-based documentary about the introduction of cane toads to Northern Australia and their subsequent takeover and wipe out of other species. Enlightening and fun!

FRIDAY, APRIL 20
South Lawn/Sundial, 6 p.m.-8:30 p.m.
Bacchanal BBQ/Battle of the Bands
Listen to great music, including Darlingside and jazz/soul singer Michael Layne (Yes, he's our very own Carman security guard!), eat great food and find out how to get involved with environmental groups on campus!

SUNDAY, APRIL 22
The regular Hewitt Dining Hall dinner will feature a local, organic menu.