The+Language+of+Comparision+and+Contrast

The vast majority of energy used in northern Europe still comes from fossil fuels ** although ** the push for newer less polluting sources has begun. ** Both ** wind ** and ** solar power have been at the forefront of the research, ** but ** the problem of reliability has not really been overcome in the northern regions because of climatic considerations. ** In contrast, ** hotter countries have benefited from solar technology for decades now, while the colder north has had little success. ** On the other hand ** wave power has proved to be more consistent in terms of producing a steady energy supply. The output to date, ** however, ** has been small.

The device works ** differently from ** natural systems, but the result is ** exactly the same. **

Sea levels are higher now than they have been for the last 100 years, ** though ** this change has affected regions ** differently ** because the Earth’s crust is not uniformly ** the same. ** The oceans cover 70 % of the planet, so any perceptible ** difference in their ** depth or temperature is a dangerous development. Of course, sea levels have been ** as high as ** this before but then human civilization was not a factor. Now our planet is ** much more ** densely populated and ** as ** ** many as ** 39% of the world’s people live in coastal regions. The people who are ** the most ** at risk are those living in developing countries, where floods and natural disaster seem to have become ** a lot more ** frequent where there are ** far fewer ** resources for dealing with them