New Delhi, Feb 05 (ANI): French Foreign Minister Laurent Fabius on Thursday said that efforts to reach an agreement, which is due at the United Nations summit in Paris in December, would fail if any country believed it would hurt their economic prospects. Speaking at the inaugural session of 15th Delhi Sustainable Development Summit (DSDS) along with former California governor Arnold Schwarzenegger and chairman UN Inter-governmental Panel on Climate Change Rajendra Pachauri, Fabius said that rich and developing nation should work step-by-step against climate disruption. Lauding Modi's efforts, Schwarzenegger said the prime minister started a solar revolution. Meanwhile, Pachauri emphasised on implementing solutions.