Energy

  • Photo: Energy overview

    Energy overview

    We are on the verge of a profound shift in the way we produce and use energy. More »

  • Photo: Energy conservation and efficiency

    Energy conservation and efficiency

    Using less energy not only reduces greenhouse gas emissions, but also saves money and creates jobs and other economic benefits. More »

  • Photo: Wind energy

    Wind energy

    Wind power is one of the fastest-growing sources of energy in the world, and has become a multi-billion-dollar industry. More »

  • Photo: Solar energy

    Solar energy

    The sun is a free source of clean, reliable power that can heat water and buildings, and generate electricity. More »

  • Photo: Hydroelectricity

    Hydroelectricity

    With proper siting, hydroelectricity can play an important role in a future powered by renewable energy. More »

  • Photo: Geothermal heat pumps

    Geothermal heat pumps

    Geothermal heat pumps are one of the cheapest and most reliable ways to heat and cool most buildings today. More »

  • Photo: Biomass

    Biomass

    Biomass has the potential to generate significant electricity and heat, and provide a new source of income for farmers. More »

  • Photo: Natural gas

    Natural gas

    Although natural gas produces fewer greenhouse gases than coal or oil, it is not a solution to climate change. More »

  • Photo: Oil

    Oil

    Like other fossil fuels, oil's production, transport and use have significant environmental impacts. More »

  • Photo: Coal

    Coal

    Burning coal to produce electricity affects air quality, human health, wildlife, and climate change. More »

  • Photo: Renewable-energy certificates (RECs)

    Renewable-energy certificates (RECs)

    One of the largest sources of greenhouse gas emissions is electricity generation. By choosing to buy green power from your local utility, you can lower your greenhouse gas emissions dramatically. More »