by Jean-Baptiste OUBRIER LONDON, United Kingdom (AFP) — Energy firm BP’s pledge on Wednesday to achieve “net zero” carbon emissions by 2050 is among the most ambitious in an industry often criticized for its inaction over climate change. Here are the commitments made so far by the world’s major oil companies: BP  The British company says it is aiming to be a net zero company in its global greenhouse gas emissions by 2050 or sooner. […]