This portlet is also a solution for site administrators to promote certain links without tampering with the relevancy logic of the search engine by adding term weights to certain keywords.
The reasons why they don't, and why the environment has not been ruined, have to do with prices, technological innovation, social change and government regulation in response to popular pressure.
The centrifugal model test for slope damage mechanism with different water contents indicates two types of damage, namely whole body slide and tensile rupture.
Today's report is the starkest warning yet of the potentially devastating impact of climate change and human exploitation on the Antarctic's delicate ecosystems.