Nobel laureate Dr Muhammad Yunus has said the international community should be united to face global food crisis, otherwise the development targets of the Millennium Development Goal (MDG) would be hampered severely. "Due to abnormal price hike of oil an unstable situation has occurred across the world. The situation has aggravated further due to global food crisis, climate change and fall of the Dollar. If the international community does not unite to face the problem then the MDG would be hampered,' he said.