Reuters: Thousands of Bangladeshis urged big polluting nations on Tuesday to cut greenhouse gases and help low-lying countries prone to disasters adapt to powerful storms, floods and rising seas. The calls were made during a colourful rally sponsored by the international aid agency Oxfam at Gaibandha town in northern Bangladesh to draw attention to climate change that threatens millions of vulnerable people. More than 4,000 people holding placards and banners attended the rally and took …