The crisis of the entire environment will result in a crisis of human life. Willliam Stafford's poem "Travelling Through the Dark" depicts the tension between a sense of obligation and emotion. For environmentalists, it is also humorous. The first line is "How sad it is to travel on an empty road". This means that even though there are no people around, you should not travel any faster than the normal speed because someone might come along the road later. Darkness brings about uncertainty. We need light to see where we're going but it also causes danger when driving at night. There have been many accidents caused by drivers using their phones or other devices while behind the wheel. Also, darkness can be a sign that something bad is about to happen. Animals flee from threats in the dark so too should we. If you encounter animals on the road during nighttime hours, do not worry about them - they are usually just trying to get home before something happens. Finally, darkness can be comforting. Some people like to drive at night because it is less stressful than the city streets during the day. Others like the idea of seeing what's down the road with no humans around to distract them. Overall, the crisis of the entire environment will result in a crisis of human life.