World climate rallies put pressure on Paris summit to act

By Morag MacKinnon and Alister Doyle PERTH, Australia/PARIS (Reuters) - Tens of thousands of people joined one of the biggest global days of climate change activism on Sunday, from Sydney to Berlin, to put pressure on world leaders to unite in fighting global warming at a summit in Paris. About 20,000 pairs of shoes were laid out in the Place de la Republique in the French capital, from high-heels to boots, to symbolise absent marchers after attacks by Islamic State militants killed 130 people o