Earth Day poster competition entries and winners!

<p>Student volunteer judges in the <a href&equals;"https&colon;&sol;&sol;www&period;oustudents&period;com&sol;about-us&sol;environment-and-sustainability&sol;working-group&sol;">Environment and Sustainability Working Group<&sol;a> and <a href&equals;"https&colon;&sol;&sol;www&period;oustudents&period;com&sol;organisation&sol;6491&sol;">OU Environmental Sustainability Society<&sol;a> chose the following four winning posters&&num;8230&semi;<&sol;p>&NewLine;<p>&lbrack;zombify&lowbar;post&rsqb;<&sol;p>&NewLine;