The idea of drawing our energy from sources that are renewable, are independent of foreign nations, and do not emit greenhouse gases has powerful appeal. But capturing these resources is expensive, and many are intermittent, which complicates using them on a large scale. Learn about renewable sources’ current contributions to our energy supply and their prospects for our energy future.
Understanding EfficiencyLearn the significance of energy efficiency
The Promise of Better LightingEnergy savings through lighting technology
Our Energy SystemA visualization of all our energy sources
- Carbon Debt
The amount of carbon emissions that exceed sustainable carbon sinks. A carbon debt could be assigned to any entity to which carbon emissions can be attributed, such as an individual, a firm, a group, a country, or an industry. Attribution of emissions and estimation of sustainable carbon sinks are complications to calculating this metric.
Search the National Academies Press website by selecting one of these related terms.