President Trump comes into office determined to discard huge swathes of his predecessor's legacy on day one, writes Mark Barteau. But he will struggle to undo Obama's clean energy regulations. It's not just that they are legally robust, it's also that energy markets in the US and the wider world have shifted firmly, and irreversibly, towards efficiency and renewables. Sorry, Mr Trump.
The President-elect may be determined to lead America down an environmentally damaging path, writes Andrew J. Hoffman. But he may find few in the corporate world, where a growing number of major players are committed to eliminating CO2 emissions and making sustainability a core element of their business systems and supply chains, leading to global green transformation.
Trump has pledged to ditch the Paris Agreement, scrap Obama's clean power plan, get coal miners back to work, and 'make America great again' on the back of a huge expansion of fossil fuel production, writes Mark Barteau. But he will run into serious difficulties, not least states going their own renewable ways, cheap natural gas, and weak international demand for coal.
As world leaders convene in Paris for the COP21 climate summit, the major task before them is to replace fossil energy generation with renewables, writes Paul N Edwards - and with the right incentives, it could happen fast. For developing countries it's different: they could skip over fossil fuels much as they have gone straight for mobile telephony. But will they seize the opportunity?