Poznan, Poland - UN climate change talks focussed Tuesday on how rich countries can help poorer nations curb emissions of global-warming gases, with governments struggling to craft a "shared vision" for a wider deal due within a year.
Providing so-called clean technology to emerging nations like China and India - and how to pay for it - is a key sticking point at this year's UN conference that began Monday.
At issue are emissions of gases, mainly carbon dioxide created when fossil fuels burn, that scientists say are changing Earth's climate. China, but also many countries in eastern Europe, rely heavily on cheap coal for their energy needs.