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Six Nobel Laureates say averting world's climate crisis requires immediate energy research, conservation, and regulation. Watch a webcast of "Energy Self-Sufficiency in the 21st Century

Learn how climate scientists think about and model the risks of climate change as well as the issues in building and interpreting these models. Drawing upon his experience as a working member of the Intergovernmental Panel on Climate Change (IPCC), Michael Mastrandrea will discuss the implications and interplay between the science and policies, such as mitigation and adaptation. He will also provide an overview of some of the latest climate change research, including the IPCC's Fourth Assessment Report, which was released in 2007.

The United Nations Climate Change Conference starts today in Bali, Indonesia with more than 15,000 attendees from 180 countries expected. We look at the United States' role at the conference, and the prospects for a global agreement on cutting greenhouse gas emissions.

The Meeting of the Minds Conference -- jointly convened by Toyota, the UC Berkeley College of Environmental Design, LandDesign, and Urban Age Institute -- aims to bring two worlds together around one common goal: designing more sustainable post-carbon cities while creating more sustainable vehicles. This invitation-only Conference provides a unique platform for leading automotive technologists/engineers, who focus on designing cars and buses, to share their future visions with leading urban planners and designers, who focus on the built environments which house more than half of humanity. Approximately 150 participants are leaders drawn from the public sector (particularly big city mayors); the private sector (auto companies; urban design/planning and development companies); independent sector (academia, NGOs and media). They will spend two full days re-imagining 'the big picture'; learning from cities successfully adopting neighborhood-based solutions; debating vehicle and innovating new surface systems; identifying the critical tools which we need in order to move forward. With live webcasts streaming the Conference through several websites, and with live blogging and other creative uses of digital media, Conference discussions will have a wide audience and reach key change-agents on four continents.

This conference provides a unique platform for leading automotive technologists/engineers, who focus on designing cars and buses, to share their future visions with leading urban planners and designers, who focus on the built environments which house more than half of humanity. Approximately 150 participants are leaders drawn from the public sector (particularly big city mayors); the private sector (auto companies; urban design/planning and development companies); independent sector (academia, NGOs and media). They spent two full days re-imagining 'the big picture'; learning from cities successfully adopting neighborhood-based solutions; debating vehicle and innovating new surface systems; identifying the critical tools which we need in order to move forward. The Conference features many Berkeley faculty including Daniel Kammen, Inez Fung, Elizabeth Deakin, Harrison Fraker and Severin Borestein.

The program explores the economic and policy side of Silicon Valley's boom in clean technology. Host: Dave Iverson Guests: Dan Kammen, director of the Berkeley Institute of the Environment Ira Ehrenpreis, general partner of Technology Partners and chairman of the Clean-Tech Investor Summit James L. Sweeney, director of the Precourt Institute for Energy Efficiency at Stanford University, professor of Management Science and Engineering and fellow at the California Council on Science and Technology Vindu Goel, business columnist and blogger at the San Jose Mercury News

Listen to Berkeley Lab Director Steve Chu's recent talk at the Berkeley Repertory Theater, on the energy problem and what the Lab's Helios project can do about it.

On February 1, the global energy firm BP announced that it had selected UC Berkeley, in partnership with Lawrence Berkeley National Laboratory (LBNL) and the University of Illinois at Urbana-Champaign, to lead an unprecedented $500 million research effort to develop new sources of energy and to reduce the impact of energy consumption on the environment. In this edition of Bear in Mind, UC Berkeley's ongoing webcast series about campus issues, Chancellor Robert Birgeneau delves into the details of the university's winning proposal and discusses the emerging plans for the new Energy Biosciences Institute.

Whole Foods Market is the largest organic and natural retailer in the world. The co-founder and CEO of Whole Foods, John Mackey will offer a multimedia presentation of the past, present, and future of food. John Mackey will then join Michael Pollan in conversation, continuing in person the exchange of views the two have been conducting since the publication of Pollan's 2006 book, "The Omnivore's Dilemma."

A growing number of Americans are embracing ethanol and bio-diesel as possible alternatives to gasoline. But one Berkeley engineering professor is waging a campaign against what he considers a delusion about bio-fuels.