In a bid to draw attention to the hazards of wasting resources around the world, each of the 40,000 participants in the 12-day UN climate change conference in Paris received a reusable bottle of water. "Imagine if 40000 people drank 3 bottles of water every day for 12 days; maybe a million plastic bottles would have been used (and disposed of)," an organiser told Ahram Online. Around 150 world leaders — including those of the United States, China, Russia, and India—gathered in France to attend the COP21-Paris 2015 on its first day. The summit seeks to end roughly twenty years of international disagreements over reaching a pact that would limit emissions of greenhouse gases, which are responsible for climate change http://english.ahram.org.eg/News/172195.aspx