Reuters: John McCain’s emergence as the Republican front-runner in the U.S. presidential election has sown the seed of a carbon dividend which investors have yet to appreciate, Simon Webber, the manager of the Schroder ISF Global Climate Change Equity fund, said on Wednesday. Webber told a media briefing in Hong Kong that all three senators remaining in the race for White House – McCain, Barack Obama and Hillary Clinton – had similar policies on climate change and favoured an absolute …