According to a NOAA report, the winter of 2014-2015 was the warmest on record globally, with an average temperature 1.42°F higher than the 20th century average. This is evidence of rapidly changing climate caused by human activity. Harvard Climate Week in April highlighted the urgency of climate change through speakers and events across the university, including a talk by Unilever CEO Paul Polman on corporations and climate change. As a capstone, Harvard President Drew Faust hosted a President's Panel on Climate Change with experts discussing how society and universities can address climate change dangers. The week aimed to educate about climate change and inspire action through individual and institutional changes like recycling and green office certification.