Today I want to share with you an article which illustrates how we can use energy more sufficiently. As street lighting takes up to 6% of electricity use in modern countries, it’s worth to think about smarter ways to light urban areas. That’s exactly what they try to do in Copenhagen. Read the article.
Global energy demand is ever growing. A few years back China was opening a new coal plant every day on average to keep pace with its demand. Luckily they are considering other means of energy production these days, as air pollution is a worsening problem in the country. Most countries – including China – still tend to build more power plants to tackle their shortage on energy. But why not using the available energy more efficiently?
The Great Barrier Reef is still world’s largest coral reef system stretching for over 2.300 kilometres. over an area of approximately 344.400 square kilometres. Due to climate change and the impact of human behavior the Great Barrier Reef lost nearly half of its corals since 1985, according to a study of National Academy of Science.
Converting the vibrations of the “belt” caused by passing air into electricity, the Windbelt can produce up to 40 mW – enough to replace the smoky kerosene lamps used in third-world countries.
Today we are going to talk about the ozone hole. There’s a good chance you got a sunburn in the last few weeks and so you know by experience how important it is to block out the ultraviolet radiation from the sun. Luckily, most of the radiation is blocked by our dear earth’s ozone layer already. Problem is there’s a hole in it. You probably have heard of it before, but do you know what caused it, how politicians tried to stop it and why they created a new problem by doing so? You will find out soon!