Are alternative energy sources important for the future?
Cheap electricity from renewable sources could provide 65% of the world's total electricity supply by 2030. It could decarbonize 90% of the energy sector by 2050, massively reducing carbon emissions and helping to mitigate climate change.
Why alternative energy sources are important Alternative energy sources are important for two reasons: conventional fuels are finite and will eventually run out, and alternative sources provide energy without increasing the amount of greenhouse gases (GHG) that build up In the atmosphere.
Alternative energy isEnergy that does not come from fossil fuels, and therefore produces little or no greenhouse gas such as carbon dioxide (CO2). This means that energy produced from alternative sources does not contribute to the greenhouse effect that causes climate change.
As fossil fuels become more scarce, their market price will rise, encouraging consumers to use less.. The higher price also makes it profitable for energy companies to invest in new fossil fuel production technologies and invest in alternative energy sources, including renewable energy.
- SOLAR ENERGY. Solar energy is the most productive of all energy sources and can even be used in cloudy weather. ...
- WIND POWER. ...
- GEOTHERMAL ENERGY. ...
- HYDROELECTRIC. ...
- MARINE ENERGY. ...
Renewable energy resources have enormous potential to meet people's energy needs on a global scale.. Unlike fossil fuels, they are available in abundance and generate little or no emissions. Burning fossil fuels has caused many environmental problems, from carbon dioxide emissions to ocean acidification.
New features that are being researched or developed includehydrogen, nuclear fusion, ocean thermal energy conversion, and tidal and wave energy. (Solar, wind, and geothermal energy are covered in separate fact sheets.) One fuel that has the potential to be widely used in the future is hydrogen gas (H2).
Burning fossil fuels for energy results in a significant amount of greenhouse gas emissions that contribute to global warming. Most renewable energy sources result in little or no emissions, even considering the full lifecycle of the technologies. Renewable energy emits little or no air pollutants.
Using an alternative fuel can be a good way toreduce carbon emissions. Burning fossil fuels releases carbon that was previously stored underground into the atmosphere. Biofuels, on the other hand, release carbon that has been taken out of the atmosphere by the crops they are made from.
Available evidence suggests that alternative fuels are being usedreduces greenhouse gas (GHG) and volatile organic compound (VOC) emissions1, 6, 7, 8, and that alternative fuel sources, such as compressed natural gas, methanol, ethanol or electricity, produce significantly lower emissions of pollutants into the air than conventional ...
Are renewable energies enough?
If the world got rid of fossil fuels, could we generate the energy needed to power the world with 100% renewable energy? The answer is yes, according to a new report from LUT University in Finland and the Energy Watch Group, a German non-profit organization.
Use of oil, gas and coalcan lead to air and water pollution, land degradation and pollutant emissions that drive climate change.
Using an alternative fuel can be a good way to reduce carbon emissions.. The burning of fossil fuels releases carbon into the atmosphere that was previously stored underground. Biofuels, by contrast, release carbon that has been removed from the atmosphere by the crops they are made from.