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  2. Sustainable energy - Wikipedia

    en.wikipedia.org/wiki/Sustainable_energy

    Biogas produced from biomass is a renewable energy source that can be burned for cooking or light. A sugarcane plantation to produce ethanol in Brazil. Biomass is renewable organic material that comes from plants and animals. [92]

  3. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    The main motivation to replace fossil fuels with renewable energy sources is to slow and eventually stop climate change, which is widely agreed to be caused mostly by greenhouse gas emissions. In general, renewable energy sources cause much lower emissions than fossil fuels. [12]

  4. Biomass (energy) - Wikipedia

    en.wikipedia.org/wiki/Biomass_(energy)

    Biomass (in the context of energy generation) is matter from recently living (but now dead) organisms which is used for bioenergy production. There are variations in how such biomass for energy is defined, e.g. only from plants, [8] or from plants and algae, [9] or from plants and animals. [10]

  5. ENERGY SECURITY & EMERGENCY PREPAREDNESS How Clean Energy Can ...

    images.huffingtonpost.com/2012-11-08-CEGClean...

    consider one crucial option for energy security—call for the installation of new, more reliable forms of on-site electricity generation at mission critical, public safety facilities. E mergency preparedness and effective response depend entirely on the relia-bility and quality of a first responder’s energy supply. If primary grid power

  6. Ecophysiology - Wikipedia

    en.wikipedia.org/wiki/Ecophysiology

    Plant ecophysiology is concerned largely with two topics: mechanisms (how plants sense and respond to environmental change) and scaling or integration (how the responses to highly variable conditions—for example, gradients from full sunlight to 95% shade within tree canopies—are coordinated with one another), and how their collective effect on plant growth and gas exchange can be ...

  7. List of energy resources - Wikipedia

    en.wikipedia.org/wiki/List_of_energy_resources

    Energy portal; These are modes of energy production, energy storage, or energy conservation, listed alphabetically. Note that not all sources are accepted as legitimate or have been proven to be tappable. Bus running on soybean biodiesel. Atomic energy; Alternative fuel; Alternative fuel vehicle; Banki turbine; Battery (electricity) Bioalcohol ...

  8. Fossil fuel - Wikipedia

    en.wikipedia.org/wiki/Fossil_fuel

    A variety of mitigating efforts have arisen to counter the negative effects of fossil fuels. This includes a movement to use alternative energy sources, such as renewable energy. Environmental regulation uses a variety of approaches to limit these emissions; for example, rules against releasing waste products like fly ash into the atmosphere. [41]

  9. Energy flow (ecology) - Wikipedia

    en.wikipedia.org/wiki/Energy_flow_(ecology)

    Secondary production is the use of energy stored in plants converted by consumers to their own biomass. Different ecosystems have different levels of consumers, all end with one top consumer. Most energy is stored in organic matter of plants, and as the consumers eat these plants they take up this energy.