The given column chart provides data on three methods of disposal of waste materials in 2005, 2006 and 2008.
Overall, what stands out from the illustration is that dumping in sea witnessed an upward trajectory while dumping in landfill sites lost popularity in the given time. Additionally, the burning method of disposal fluctuated over the period.
A number of indicators demonstrated remarkable upward movement during the period. At the start, dumping in the sea stood at around 1200 million tonnes. The following year, it rose gradually and a little over 1400 million tonnes in 2006, with growth becoming more marked after 2 year. By the end of the timeframe, in 2008, it had expanded substantially, and reaching its highest recorded value that accounted for almost 1650 million tonnes. This consistent upward trend reflects a progressive increase across the period.
In contrast, waste was disposed by landfill began from a relatively high point, approximately 2000 million tonnes which was the maximum consumed in 2005 than other two methods, but it followed a downward trajectory overall. The fall was moderate at first yet more pronounced in the later years, leading it to its lowest figure by 2008 which was just under 1200 million tonnes. Meanwhile, burning method displayed erratic movements over the period. In starting year, it was around 900 million tonnes and next year, it experienced a gradual upward trajectory, approximately 1200 million tonnes but two years later it lost the position and back to the earlier levels.