Emissions levels have proved a sticking point Leading US politicians are meeting with legislators from the EU, China, Japan and India to seek a breakthrough in the international climate deadlock. The meeting, organised by British-run parliamentarians' group Globe, is strongly supported by the UK Prime Minister Tony Blair. On Thursday, it will publish recommendations for a new world deal on climate change at the G8 summit. G8 leaders will be meeting in Germany this summer. The gathering in the US senate has attracted two presidential candidates - John McCain and the Senate Foreign Relations committee chair Joe Biden. In...