Susan Giordano - discusses advanced wind measurement technology used for wind farms. General Manager at Second Wind.

Ove Hoegh-Guldberg - discusses coral reefs, global warming, jobs, political skullduggery and phasing out coal! Foundation Professor and Director of the Centre for Marine Studies at The University of Queensland.

Christine Milne - discusses the emissions trading scheme and Labor Party hypocrites and Liberal/National Party 'deniers' in the Australian Federal Parliament Australian Greens' Senator

David W. Orr - discusses climate change politics, obstacles, proposals and solutions. Lecturer and writer on environment and politics, environmental education, campus greening, green building, ecological design, and climate change.

KC Golden - discusses the American Clean Energy and Security Act and the Clean Energy Jobs Bill, plus more on the sorry tale of General Motors. Policy Director for Climate Solutions, Seattle.

Renate Egan - discusses Crystalline Silicon on Glass, the next generation of solar photovoltaics. Technology Director at CSG Solar.

Ken Ward - discusses how the environment movement is failing on climate change. Former Executive Director of the New Jersey Public Interest Research Group, the Rhode Island Public Interest Research Group and a former Deputy Director of Greenpeace USA.

Amory Lovins - discusses energy efficiency, transport and renewable energy. Chairman and Chief Scientist of the Rocky Mountain Insitute, his work includes energy policy, resources, security, economy, environment, and development.

Richard Heinberg - discusses ending our fossil fuel addiction. Author and speaker on the urgent need to transition away from fossil fuels.

Paul Gipe - discusses wind power for North America. Author, advocate, and renewable energy industry analyst.

Heinz Dahl - discusses wind power as a means to global conservation. Director of commercial operations and marketing at the World Wind Energy Association.

Chris Field - discusses observed greenhouse gas emissions worse than IPCC's worst projections, biofuels, and biomass energy as an avenue for negative emissions. Director of the Department of Global Ecology at Carnegie Institition, Stanford University.

Luke Chamberlain - discusses the link between logging Australia's forests and global warming. Forest campaigner for the Wilderness Society, Australia.

Hans Joachim Schellnhuber - advocating pre-industrial carbon levels for safe climate. Director of the Potsdam Institute for Climate Impact Research and Chief Government Advisor on Climate and Related Issues during Germany's EU Council Presidency and G8 Presidency.

Sylvia Tulloch - discusses dye solar cells that turn sunlight into electricity by imitating plants. Materials expert and Managing Director of Dyesol Industries, an Australian renewable energy company that supplies equipment, materials and components for dye solar cells.

Bill McKibben - discusses the need to keep atmospheric CO2 below 350 ppm. Environmentalist and writer, Bill McKibben is the founder of the international climate campaign 350.org

David Karoly - discusses the latest global warming science. Australian climatologist, Federation Fellow at the School of Earth Sciences at the University of Melbourne and lead author, Working Group II to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change.

Iain Todd - Scotland's Aberdeen, famous for oil and gas, is going renewable! Renewables Champion for the Aberdeen Renewable Energy Group.

Steve Hollis - discusses Lloyd Energy System's graphite block storage. CEO of Lloyd Energy Systems.

Geoff Henderson - New Zealand is the 'Saudi Arabia' of wind! CEO and director of Windflow Technology.

more to come...