In the article, "Sustainability", Missouri Asphalt Pavement Association (2013) discusses the 'green' effects of asphalt. The article considers asphalt as 'green' for being non-disposable and reusable regardless of its age, but also because it allows other waste products to be involved in the process. The development of Recycled Asphalt Pavement (RAP) is revolutionary in asphalt paving, as it uses cultivated old asphalt to be incorporated into new asphalt using heat. The article highlights the lesser use of pristine resources and reduction in spending and fuel usage which benefits both contractors and the environment. Additionally, innovations such as Warm Mix Asphalt (WMA) and porous pavements are beneficial to the environment. The article adds that halved temperature emissions and reduced carbon footprints are resultant of WMA's hybrid production and mentions the porous pavements' capability to drain rainwater into recharge beds for soil absorption