世界四大危机,能源危机为最人口、粮食、环境、能源是当今世界的四大危机,它们威胁着人类的生命安全和经济发展。人口和粮食是两个紧密相连的问题,科学家经过详细测算地球上所能生产的、可供人类食用的食品后,认为我们这个地球最多只能养活80亿人口,可现在已经超过了60亿,而且人口还在急速地增加,所以全世界都在忧心忡忡。这两个问题严重地威胁着人 The world’s four major crises, the energy crisis is the most populous, food, the environment, energy is the four major crises in the world today, they threaten the safety of human life and economic development. Population and food are two closely linked problems. After scientists have calculated the available food for human consumption that the Earth can produce, they think that our planet can only support a maximum of 8 billion people, but now it has exceeded 6 billion. And the population is still growing rapidly, so the world is worried. Both of these issues are a serious threat to people