US Senator Elizabeth Warren on Tuesday challenged her rivals for the 2020 Democratic presidential nomination to commit to transition the United States fully to clean energy over the next decade for electricity, vehicles and buildings. Warren, one of 20 Democrats vying to take on President Donald Trump in November 2020, issued the challenge in a comprehensive clean energy plan released ahead of a 7-hour CNN Town Hall on Wednesday at which 10 candidates will discuss how they would tackle climate change. Her climate strategy weaves together several policies she has sprinkled into other proposals she has rolled out, from agriculture to tribal lands to manufacturing. It also incorporates a clean energy plan she adopted from Washington Governor Jay Inslee, who made climate change the centrepiece of his White House bid before dropping out of the race late last month.Inslee’s clean energy strategy – which had been billed as the gold standard by environmental advocates – set a 10-year plan to achieve 100% clean energy by slashing carbon emissions from US electricity generation, vehicles and buildings.”While his presidential campaign may be over, his ideas should remain at the centre of the agenda,” Warren wrote in a post for the website Medium.”Today I’m embracing that goal by committing to adopt and build on Governor Inslee’s 10-year action plan to achieve 100% clean energy… and I’m challenging every other candidate for President to do the same,” she wrote.