Timber takes about 25 years to regrow. However, if we constantly cut down trees at a higher rate without giving the trees sufficient time to regrow in their place, they will no longer be a renewable resource.
When we are taking about water; the process which makes it renewable is the water cycle. The water cycle is what actually makes the water renewable. Water because of these phenomena has the ability to move around the world in different states of matter solid, liquid or gas.
The water cycle begins through the process of evaporation. Water evaporates from the surface of leaves of plants transpiration , or from rivers and oceans and move into the atmosphere.
Atmosphere is where the water molecules combine and condense to form water droplets. This water is now stored in the cloud and can be transported around the world as air blows the cloud to various parts of the world.
The water then falls down to the surface in the form of rainfall, the rainfall can be a source of water to plants and humans thereby fulfilling their demands. Rainfall can also fill up our oceans, lakes, rivers and streams which have the ability to store large amount of water for a long period of time. This process then starts once again as the water starts to evaporate and is taken up by the atmosphere again in the form of water vapor.
This cycle hence makes it a renewable energy resource. Like all the other renewable energy resources at our disposal, all of them are renewable up to a limit and if our human activities are not sustainable or regulated carefully, they may not stay renewable for much longer. There is already a growing demand for water, especially pure water which we are unable to meet due to water shortages and a lack of purified water available due to constant water pollution and improper wastewater management.
There is only so much that the natural cycle of water can do for us. Hence, it is our duty as humans and inhabitants of this planet to utilize water properly so that it retains the ability to replenish itself and can be accessible to everyone in the population. Water should be treated as a highly valuable and limited resource.
Proper water treatment should be carried out so that water can be purified making it drinkable for humans. Our planets water reserves such as oceans, lakes, streams, rivers, glaciers and snow caps should be protected from climate change so that they may not run out reducing the supply of water more than it already is.
One way to protect these reserves from climate change is to try and prevent it! We should acknowledge and raise awareness regarding the importance of water. Water pollution and scarcity are affecting many communities globally. About million people die each year from diseases linked to water pollution while 2. What is more, it is projected that by , 3. First of all, it is important to start off with a clear understanding of what a renewable resource is. Today we are inundated with so many different types of renewable resources particularly different types of renewable energy resources, of which one is hydro, that it is important to clarify the term renewable itself.
A renewable resource is one that can replenish itself either biologically or otherwise and thereby overcome any scarcity concerns. Time or rather how long it takes for the resource to replenish itself is an important consideration to determining its potential as a renewable material. For example, timber is considered a renewable material as it takes about 25 years until a tree can be felled [3].
If our activities do not respect this time limit of plant regrowth, then timber ceases to be renewable, in a practical sense, as we would be using it much faster than it can naturally replenish itself.
In the case of water, it could be argued that water is a renewable material on account of the processes of the water cycle. How much water is there on Earth?
For a brief overview, go to this website. Getting energy from water The most significant use of water is to produce hydropower by harnessing its energy. Compared to other resources that are used to produce energy and power, water is considered renewable as well as having the least solid waste during energy production.
To know more about the different uses and benefits of harnessing water as an energy resource, go to this website. For a picture of how much water a country like the USA uses for energy, visit this page. Another website gives you a similar picture.
Conserving water It is impossible to imagine doing our daily chores like washing dishes or clothes or even using the toilet without water. For a brief look at how much water an average household consumes, and ways in which we can save and conserve water, go to this website.
0コメント