Australian Broadcasting Corporation: MARK COLVIN: Climate advocates aren't all that happy but they concede it's a good start. European Union leaders have struck a deal to cut greenhouse gas emissions by at least 40 per cent by 2030. It's what's being described as an opening gambit, as countries reveal their emissions pledges ahead of critical climate talks in Paris next year. The Labor government committed Australia to cutting emissions by 5 per cent by 2020 - a commitment the Abbott Government promised on this program to keep straight...