Evapotranspiration

Water is necessary for life. Without water, there would be no life. These are the core reasons why we need to protect our water sources and prepare for the future. Water does not only support life, but it also is used for irrigating our crops, and generating energy. Even with water's great uses, civilization seems to be careless with how we treat our water. The amount of freshwater we have available for use is not a large amount, and we need to conserve it as best as possible. There are many dangers that our freshwater is facing that we should consider. Irrigation, generating energy, personal use, sustaining ecosystems, climate change.

Food accounts for 70% of the freshwater on the planet, and with a growing population we will only need more food. Some things we can change to combat this danger is researching new methods for food production. “There are plenty of sustainable ways of responding to increased food demand, such as drought resilient crops, incentives for more efficient irrigation and water usage, removal of subsidies encouraging inefficient” (p. 40). Apart from irrigation, water is also needed to produce energy. It's required not only for the production process, but is needed “for cooling in the generation of thermal and nuclear electricity” (p. 40). Generating more power is going to be needed with the growing population along with more food. With the amount of energy needed for the growing population we need to discover a new power source, something other than water that can be clean, renewable, and easily available for those in difficult to reach areas.

One of the most necessary uses for water is personal use. The human body is roughly 60% water. Apart from being water, people also drink a lot of it, billions of gallons a day. The water we put into our bodies needs to be safe and sanitary. People use the water not only for drinking, but “smallholders and landless people such as raising livestock. Trees and shrubs for fuel wood, timber, fruits and...