Mostrando entradas con la etiqueta environmental management. Mostrar todas las entradas
Mostrando entradas con la etiqueta environmental management. Mostrar todas las entradas

sábado, 8 de julio de 2017

Essential for life


In the Environmental Management class, we have been studying the water cycle and the water availabilty on Earth. For this task, we were asked to write a text including these topics and also to talk about and give our opinion about what happens with the water nowadays.

Water, a simple word that means so much. Water is the essential component of all life. Think of this, it is the main source of plants’ photosynthesis process in which they release oxygen, indispensable for any kind of life on earth and also the main source of the water cycle. Nowadays, water has become a real problem as many countries don’t have access to it. Besides, with the development of industries, water pollution is causing really bad diseases and conflicts around the world.

We all may think, why there are still water shortage problems on the earth when most of it is covered by water? The answer to that question is that it’s not as simply as that. That 97% water surface is salty water, which means we cannot consume it unless it goes through the process of desalination (which is really expensive). Only 3% of that 97% is the fresh water used by humans and the whole ecosystem, in fact of that 3% just 25.33% is the water we use. The remaining percentage (74.6%) is either in the atmosphere, in the form of ice or in the soil. The actual problem, is that we, humans, are wasting that 3% of fresh water. All the Industrial waste generated through the years is dumped into rivers, oceans, and other waterways, contaminating at the same time, all other water that is fit to be used. To this we add that as Earth's population continues to grow, and people are putting a lot of pressure on the planet's water resources. In the end, if we don’t start controlling our actions, this will lead to a worldwide water scarcity.


The availability of water is one of the few things that is not caused by humans nor the society itself, but has to do with the distribution of precipitation. As we all know, on the one side, there are water- rich countries with plentiful fresh water supplies such as Canada, Brazil and Russia. In This countries, lack of water isn't a problem as they have large rivers that flow through them and also they are so huge that as a result they have plenty of territory for the rain to fall (despite the fact that the size of the territory, does not determine the reserve of water of a country since that same country can have a great dry area in which rains very little) And on the other side there are the water- poor countries such as Saudi Arabia, Lybia and Mauritius. In the case of Saudi Arabia and Lybia, this countries are dominated by deserts, so that's where the little amount of rainfall they receive in a year, comes from. In Mauritius, however, that’s not the case. This country, like many other, receives great amounts of precipitation but the problem is that the island is so little that the space where the rain falls is very small.


To conclude it's worth mentioning that it's actually hard to believe in this 21st century, where technology is so advanced, there is not solve yet the problem concerning water shortage in many countries. We constantly see in movies and documentaries how much the lack of water affects day after day to millions of people around the world. Although there has been improvements no solution capable of solving this world problem once and for all, has arisen yet. That people, who walk uncountable miles every day to get some water, are waiting for a miracle to happen, they are waiting for someone who brings them HOPE.

lunes, 29 de mayo de 2017

Hurricane Patricia: the second-most intense tropical cyclone

For Environmental Management we had to read about a tropical cyclone and make a summary including when and where it happened, its category and effects. I choose to talk about Hurricane Patricia which took place in October 2015.

 Hurricane Patricia was the second-most intense tropical cyclone on record worldwide in terms of 1-minute maximum sustained winds, and the strongest hurricane ever recorded in the western hemisphere, winds were of 266 km/h and 345 km/h, reaching on October 23 its record peak intensity . Due to its intensity, it was classified as a Category 5 on the Saffir- Simpson Hurricane Wind Scale. Patricia was formed on October 20, 2015 because of a perturbation near the Gulf of Tehuantepec, south of Mexico, and it was dissipated on October 24, 2015. This hurricane mostly affected Mexico's Pacific coastline Playa Perula in the state of Jalisco, where approximately 400,000 people live there, since it made landfall on a Friday around 6:15 p.m. in that area. As the areas affected were mostly rural, the damages didn’t cost any life despite its intensity, but of course there was severe infrastructure damage, multiple homes were harmed, telephones lines were interrupted, banana and papaya crop were destroyed and mud and landslides closed several roads. The total losses were valued around 5.4 billion pesos. 
 Hurricane Patricia was followed by intense flooding rains that not only extended to southeastern Mexico, but it also affected southern Texas (United States) and Central America. In Central America, hundreds of thousands of people were directly affected by the storm; mainly in Guatemala, El Salvador, Nicaragua and Honduras. In Guatemala 2,100 people required evacuation and one person was killed in the Alta Verapaz Department. As happened in Mexico, lots of hectares of crops were damaged and 223,000 people were affected. In El Salvador there were floods that reached 185mm of rainfall and four people were killed. In Nicaragua, a landslide buried four miners in Bonanza and only one died while the others were rescued. Finally, in Honduras, water levels of The Ulúa River increased and 200 people were evacuated. 

   Areas of Quintana Roo and Veracruz (Mexico) had also been affected badly by heavy rainfall and floods. In Quinatana Roo floods reached 502mm, it affected 1,500 and 150 people ended looking for refuge in public shelters. The damage was valued at 1.4 billion pesos. In Veracruz more than 24 inches of rain caused water levels of rivers to increase. 

   In Southern Texas there was also heavy rain that produced severe floods. Although cars were flooded and a train derailed there weren’t any deaths. There was also a brief tornado in the city that didn’t cause much damage. Roads ended up inundated and 500 homes were affected. Damage was estimated at $50 million. 
  To conclude it’s not worth mentioning that for Mexico’s government the damage was nothing
like what they were expecting. This is because Hurricane Patricia hit rural areas where people are found very distributed in space.


Boys playing in the receding floodwaters two days after the passage of Hurricane Patricia in Jalisco, Mexico