Introduction An artificial light source is necessary for areas where natural light is not enough to support optimal plant growth. For instance, during summers, container crops can be moved indoors and supplied with the light they need by artificial sources. This means that adverse seasonal effects on plants yields are...

Impervious roofs increase runoff and flooding, but green roofs can assist with flood mitigation. Intensive green roofs have deep soil and more diverse vegetation. They can retain up to 90% of rainfall from a small storm, but many factors affect retention. A higher level of organic matter in the soil...

Prabaharan (2012) defines green design is the engagement of developing a product or infrastructure in a way that is environmentally friendly. The design is more inclined towards the built environment with the aim of ensuring that the natural environment is protected (Prabaharan, 2012). The author asserts that integration of different...

When it comes to lowering greenhouse gas (GHG) emissions, congregation can significantly lower emissions as it combines the generation of power with capturing the heat generated for other uses. While technologies such as natural gas are around 60% energy efficient, the use of congregation can increase this efficiency up to...

There have been many different projections as to how much of the world’s energy supply could be provided by renewables alone. In the coming decades, renewables could supply around 57% of the world energy needs by 2050 if significant more investment in renewables occurs (IEA, 2012). In addition, it is...