What the temperature in North Pole increasing will bring about to the world economic development? That is the topic of North Pole scientific research team of our country. Cheng liqi, the team leader said that as to the temperature increasing, there are two controversial point of view: if the ice and snow in North Pole turning into water, the sea level will be up to 70 meters and cities along the continent will be sunk. That is a big tragedy. Other point of view is completely different. It said if it is so, then the Bering Sea strait will be our fishing ground and frozen ground will be decreased in north-east China and Inner Mongolia where we can develop our agriculture...