Given the pledge to commit to reducing carbon emissions to help save the Earth from further destruction, it seems the members of the G20 countries have overlooked the fact that coal-fired power plants are major contributors to the global warming problem.
Microalgae may not just be the stuff that people can eat or material that can be used as fuel. It might be the key to ending problems on climate change.
Geothermal energy is seen as one of the most viable alternatives for energy source, but its continued use may trigger earthquakes, make them stronger and more destructible.