Earth Hour 2013

• Nelly Furtado held a free concert at Nathan Phillips Square in Downtown Toronto to celebrate Earth Hour.
• In Toronto, Ontario, York University's student-run Environmental Outreach Team ran an afternoon Earth Hour information session, and the York University Observatory offered an extra public viewing session.
• Stargazing activities were held in Toronto's Ontario Science Centre and Richmond Hill's David Dunlap Observatory.
• Astronomy Ireland set up high-powered telescopes in Dublin's Phoenix Park to allow people to take advantage of the night sky, normally swamped by bright city lights.