By 2020, depending on the scenario, between 6,000 and 9,000 Mt of CO2 emissions could be avoided. Significant emission reductions are also predicted for the acid gases, sulphur dioxide and oxides of nitrogen. More accurate results can be obtained by life cycle analysis. Improved Water Quality. In many regions, a shortage of potable water damages human health.
Hydroelectric schemes can improve water supplies.
Small wind turbines already pump water from underground reservoirs. They require lower levels of agrochemicals. Some energy technologies can be used to treat waste so that it no longer constitutes a pollution threat to water courses, whilst others offer the prospect of producing water through desalination. Reclamation of Degraded Land and Habitat. Growing energy crops on land degraded by previous agricultural practices can help to improve soil conditions and enhance wildlife diversity.