<http://schema.org/description>
"The ozone layer prevents much of the sun&amp;#039;s ultraviolet light from reaching the Earth. But there&amp;#039;s a problem: a gaping hole the size of Antarctica. What can we do about it?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/environmental/green-science/plug-hole-ozone-layer1.htm>