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Showing posts with the label whales

The Problems of Earth: Global Demand For Energy and Global Warming

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Global  demand  for  energy is the need of energy to power building, industry, transportation and other socioeconomic factors.   City by night (Pixels Art, 2021) Global demand for  energy is increasing due to industrial activity and advances in both developing and developed countries. Fossil fuel energy sources –such as coal, natural gas, and oil– are used to meet energy needs for much of the world. But the combustion of fossil fuels has increased the amount of CO2 in the atmosphere by more than a third since the Industrial Revolution. The rapid rise in greenhouse gases is a problem because it’s changing the climate faster than majority living world can adapt to. Moreover, burning fossil fuels emit high amounts of particulate matter and toxic gases that are highly harmful to health.  Polar bear struggled to find food due to ice melting. (The times, 2017).  Every year, an estimated 40,000 children die before their fifth birthday because ...

The problems of Earth: Plastic pollution

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Plastic pollution is the accumulation in the environment of synthetic plastic products.   Plastic polluted “paradisiac” beach in Tulum, Mexico (Maria Serra, 2018) Plastic pollution has become one of the most pressing environmental issues: the accumulation of plastic in the ecosystem creates problems for wildlife and their habitats as well as for human populations. When the first plastic was produced in 1860, little they knew that the material would be so harmful. From that first object –a billiard ball– many modifications have been made: now plastics contain additives making them stronger, more flexible and durable.  Nowadays, 500 million metric tones of plastic are produced every year –90% more than 40 years ago– and it is projected to triple by 2050. 12 million tons of plastic waste –the equivalent of 800 Eiffel Towers– escape to the oceans annually. Every second, 200Kg of plastic is dumped into the sea. 80% of the plastic trash in the oceans –Earth’s last sink– flow...

The problems of Earth: Overfishing

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Overfishing is the taking of wildlife from the sea faster than stocks can replenish.   Commercial fishing (Wikipedia 2020).    The number of overfished stocks has tripled in half a century. Highly disruptive to the food chain, what had been isolated and regional depletions became a global and catastrophic impact by the late 20th century due to multinational fishery companies. Today, one-third of the world’s assessed fisheries are pushed beyond their biological limits, meaning that they have already collapsed.  The 90% of the fishing stocks are overexploited or exploited to their top capacity .        State of World fisheries (Environmental progress, 2018).   A study published in 2006 in the journal Science predicted that by 2050 fish populations will crash. Faced with the collapse of large-fish populations, commercial fleets are going deeper in the ocean and farther down the food chain for viable catches. Today, 90% of all large ocean hunters...