To date, we have ample scientific data and other overwhelmingly convincing evidence suggesting that world climate is changing to the detriment of human and ecological systems as a result of human activity.
迄今为止，我们有充分的科学数据和其他令人信服的证据表明，由于人类活动，气候正朝着不利于人类和生态系统的方向变化。