By SETH BORENSTEIN
AP Science Writer
The world is far off track on its 2015 pledge to curb global warming. A new United Nations report central to upcoming climate negotiations details how deeply energy and financial systems must change to get back on a safer path. Friday’s global stocktake report says the world needs to cut its emissions of heat-trapping gases by 43% by 2030. It also says phasing out of the internal combustion engine would be a huge help. And the report calls for changes in the way money flows, such as investments, subsidies, loans, grants and payments for people and places hurt by warming’s extreme weather.