Are dams and tidal power installations threats to fish and wildlife?
Diverting water from its natural course does affect an ecosystem, often far upstream and downstream from the dam or tidal power site. However, progress continues to be made to overcome these impacts and ensure that the river systems and tidal basins remain healthy and supportive of the flora and fauna that depend on them. These power systems can not be considered renewable unless they provide for the continued health of their host ecosystems and take action to prevent their long-term problems such as siltation and changes to groundwater supplies. Why Renewables: Energy Efficiency What is energy efficiency? Energy efficiency is simply the ability to do more work with less power. More specifically, it refers to technological improvements that maximize the efficient generation, transmission, storage and/or use of energy. For example, some well known improvements in energy efficiency include compact fluorescent light bulbs, gas-electric hybrid automobiles, and combined heat and power or co