News bites: Carbon tax could be in Obama's toolbox

Multinational bank HSBC says President Obama could consider a carbon tax to tackle greenhouse gas emissions and raise new revenues, notes Bloomberg.

While Obama will likely continue to push for clean energy and emissions reductions, The Washington Post says congressional opposition might limit his ability to do so.

Bloomberg Businessweek says analysts expect Obama to approve the northern portion of the Keystone XL pipeline, which would bring Canadian oil sands to Texas refineries.

A dip in U.S. ethanol fuel production for the first time in 16 years looks likely, according to Bloomberg.

Climate change activist Bill McKibben’s anti-fossil fuel national tour began Wednesday in Seattle, reports The Seattle Times.