UN Emergency Relief Coordinator Martin Griffiths has called on the foreign ministers of the G20 developed and emerging economies to work towards an end to the war in the Gaza Strip. “You have the power to make a difference. Use it,” appealed Griffiths in an opinion piece published on the website of Qatar-based broadcaster Al Jazeera. “Your silence and lack of action will only lead to more women and children thrown into the open graves of Gaza.” Humanitarian organizations are doing everything they can to alleviate the immeasurable suffering of the Palestinian population, he said. The G20 foreig…