Environment Changes

  The current population of the Earth is almost 7.6 billion people and growing.   It is projected to reach over 8 billion by 2025, 9 billion by 2040, and a whopping 11 billion by 2100.    Population is growing rapidly, far outpacing the ability of our planet to support it, given current practices. Overpopulation is associated with negative environmental and economic outcomes ranging from the impacts of over-farming, deforestation, and water pollution to eutrophication and global warming. While a lot of positive steps are being taken to better ensure the sustainability of humans on our planet, the problem of having too many people has made lasting solutions more challenging to find. What is Overpopulation? The term overpopulation is used to describe a situation in which the world or area has a population so large that the people there are suffering as a result. In other words, the population exceeds the region or planet's carrying capacity--the number of ...

  Wha t is soil erosion?   Before we start, it is worth pointing out that soil erosion is an entirely natural process that has occurred on planet earth for millions of years. ‘Erosion’ is an all-encompassing term for the geological process where natural substances are gradually worn away or broken down by natural forces. When relating to soil, erosion refers to the wearing away of the top layer of soil. Naturally, this may occur by wind, water, snow or ice as with all types of erosion. But thanks to human activity this process has gone from a gradual one, which might have taken place over decades or centuries, to a much faster one. Each year around 75 billion tons of soil is eroded worldwide and soil is being lost at 13 to 40 times as fast as it is naturally being replaced. This has therefore led to quite a few environmental problems as a consequence. So what are the causes, effects and solutions to soil erosion?   What causes increased soil erosion? ...