Global businesses must play a major role in mitigating the impact of climate change by embracing practices that protect the environment, experts told a UN-backed conference in Singapore…. While companies worldwide have started seeing the benefits of environmental responsibility, many more need convincing to join the cause, they said at the start of the two-day Business for the Environment Summit. [Georg Kell, executive director of the United Nations Global Compact]… urged the world's top firms to "make engagement and pro-active management of environmental and social issues into a business model that becomes a standard" for others to follow…