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Negative impacts of droughts on the environment
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Human depletion of the Earth’s ozone has contributed to the flow of pollution. (Rowlands, 1991). Many materials used by humans and factories can be naturally transported by either air or water. Oftentimes the materials that should be naturally transported can begin to degrade chemically in the physical environment (Rowlands, 1991). As materials left behind as a result of the population waste deteriorate, it can then begin to affect the crops from agriculture, contaminate the drinking water, and reduce the growth of plants and trees. Degradation of materials can also cause people to migrate to new areas, in search of food and land. The Earth is surrounded by a thin layer of ozone. In this layer, it absorbs almost all of the incoming UV rays …show more content…
The droughts are due to loss of snowpack, reduced precipitation and high temperatures. The California drought has created favorable circumstances for dangerous infectious diseases such as the mosquito-borne West Nile Virus and Valley Fever. California drought also worsened and increased health issues for people with asthma and allergies, because of the smog and air pollution; heat related illnesses caused people to die from extreme high temperatures. (National Resource Defense Council, 2015). The extreme dry conditions caused by the California drought contributes to wildfires that became out-of-control, and by late century, wildfires are expected to increase by 55%. The high temperatures takes the moisture out of the air and the soil and it causes the vegetation to burn quickly and causes fires to get larger, “In past years on average between January 1 and April 18, there would be 492 fires burning 1,300 acres. During the same time period in 2014, it was 862 fires burning 2,417 acres, and in 2015, 838 fires scorching 3,534 acres.” (National Broadcast Communications, 2015). Chinook salmon is also at risk of becoming extinct due to the warm temperatures of the water. In California, it is the primary catch for ocean fisheries and it supports thousands of jobs. Flooding is also a problem during the drought. Monsoons cause flash floods in the summer, although brief, it’s extremely tense; artic storms occur in the winter and cover Cascade and Sierra Nevada mountains with snow; and atmospheric river storms is a sequence of either rain or snow that lasts for days or weeks and can produce inches to feet of rain or snow. Health impacts include contaminated water and increased population of disease-carrying insects and rodents during
The California water drought has been declared a crisis by the governor of California. 2013 was the driest year on record, and California could be running out of water. Californians should be water wise, and their use, or no use, of water will have an enormous impact on this drought. They can use the techniques published in a recent Time article called, 5 Ways to Bust California’s Drought, to reduce their water use. Landscape techniques, alternate water sources, and the personal conservation of water can reduce the use of water, and can have a positive change on this water crisis.
On the heart (center) of California is a flat area with miles and miles of farms and up to 230 different crops. The central valley agriculture is essential to the United States; it not only delivers almost half of the produce but also helps the economy by also giving more job opportunities (California Department of food and agriculture, 2014). Many families depend on the central valley agriculture to survive economically in the United States. It is a well-known fact that rain and snows in the Sierra Nevada Mountains are a very important element in the central valley. No rain in the central valley can cause many devastating issues to occur quickly. Recently in the year of 2013 California received less rainfall than years before. The small amount of water the central valley is receiving is harming not only to the land but humans and animals as well. It’s destroying the habitats of animals with forest fires caused from the dry spells occurring. The central valley is going through a drought, so much that around this time of year the central valley usually accumulates enough rain for the necessities in the valley, agriculture for example. This year, however, has been different, the central valley hasn’t received enough water and this has caused a drought in the valley. Water is an important element in this world for not only human life, but for the environment in general, a shortage of water supply can bring issues to the environment and those living in it. The central valley holds the largest percent of class one soil, not only that, the valley grows a third of all the produce being grown in the United States, that’s more than 230 crops that are being grown in the central valley. However, this drought isn’t only affecting the resident...
Allergens in the air also affect pollution, as carbon dioxide levels cause plants to produce more pollen (Climate Change, 2007). Smoke pollution from wildfires worsens the air quality and is harmful to breathe in. Wildfire smoke contains ozone-forming pollutants, particulates, and air toxics (California’s drought, 2015). The drought increases dry, hot, and windy weather, which intensifies the severity of wildfires. According to the CDC, the drought also increases the risk of catching fungal infections, or valley fever (Live Science Staff, 2012).
The another devastating abiotic stress which is considered to be highly responsible worldwide for decreasing yield and quality of crop productivity is drought (Lambers et al. 2008 ; Moghadam et al .,2011; Mohsen Pourgholam et al.,2013 ; M. Farooq et al., 2012; Abolhasani and Saeidi, 2004 ; Monjezi et al., 2013).It harms plant growth and development and reduces crop growth rate and also affects biomass accumulation. Generally, in crop plants drought severely affects the cell division and expansion, elongation of root, leaf size, proliferation of root and inhibition of shoot growth (Sharp & Davies 1989; Spollen et al.,1993;Yamaguchi et al.,2010). Furthermore ,it also badly hampers all kinds of plant functions and physiological and biochemical traits such as mineral elements, carbohydrates, free radicals, ions, hormones, lipids, and nucleic acids (HongBo et al., 2005; Yasar et al., ; Moghadam et al .,2011,Mohsen Pourgholam et al,2013) .The transportation of nutrients from the roots to the stem severely get affected by drought as the rate of transpiration is reduced and damage of active transport and membrane permeability take place (Viets, 1972; Alam, 1999; Yasar et al ). Simultaneously, due to decrease in soil moisture, problem occurs with the low distribution of absorbed nutrients by the plant roots in the soil (Alam, 1999; Yasar et al ). More importantly, drought leads to rise in generation of reactive oxygen species (ROS) due to energy accumulation in stress condition of plants (Smirnoff 1993; Asada 2006; Waraich et al.,2011).Drought diminishes photosynthetic carbon fixation primarily through restraining the entrance of CO2 into the leaf or by reducing metabolism (Smirnoff 1993; Loggini et al., 1999; Ap...
...the El Nino air pressure. The drought also has many impacts on economic, social and environmental. Manage drought comes from daily life and the government measure.
The drought in California has seriously impacted California in a negative way and will continue to impact California negatively if it continues. Drought in California has always played a huge part in California’s geography and without action to help prevent the affects of long lasting droughts California will continue to suffer severe negative effects, which can lead to serious negative impact on the rest of the country as well.
There are different beliefs as to the probable causes of the California drought. The two primary theories are that the drought was either caused by climate change or climate variability. Alan Stahler, a columnist, followed a group of scientists who discovered the true cause of the drought, “The recent multi-year drought was caused not by global warming, but by the sea surface temperature pattern – itself caused by natural variability” (Stahler par. 14).Regardless of the cause of drought, the drought itself has many negative effects on the people of California. Many individuals will suffer due to the drought, but one of the most affected will be farmers. Katharine Mieszkowski, a senior reporter for Reveal, reports the effects of the drought
As many of you may know, 2013 has set the record for the driest year in California history and this drought has continued into 2014.
Earth is surrounded by an invisible shield that is 6.2 miles long; furthermore, it absorbs most ultraviolet rays that the sun casts down to the biosphere. Without this shield, also known as the ozone layer, all life on Earth would cease to exist because of the harsh rays the sun emits. An example of how the ozone protects species is when a person goes out into the sun without sunblock, they get a grisly sunburn. Therefore, the ozone layer is the sunblock for the Earth, without it all organisms will be brutally charred. Moreover, the ozone layer is depleting gradually if not rapidly because of the effects of humankind. Although many people
For the previous 200 years, the industrial revolution’s discovery of fossil fuels reigned supreme. (Benefits of Recycling, History of Alternative Energy) Newly developed factories continued their steady streams of production and our society started becoming larger consumers. To meet the increasing demand, more product had to be made, and this resulted in more waste being emitted into the atmosphere. These gases built up until they caused the ozone layer to thicken to the point where it started trapping the h...
... middle of paper ... ... Retrieved May 22, 2014 from http://environment.nationalgeographic.com/environment/global-warming/toxic-waste-overview/ Onishi, N. & Wollan, M. (2014, January 17). Severe drought grows worse in California. The New York Times.
The environmental challenges of the globe face greater or more complex, never human lived in such an uncertain environment. Sooner nine billion people share our planet's resources. Increasing demands of population for food, water, job, energy, vehicles, urban culture and infrastructure are pushing nature of its restrictions. The contaminations of the air, water, or earth by harmful or potentially harmful substances from anthropogenic activities is a major threat that the reason for global warming, climate change, reduction of agriculture productivity, acid rain, air pollution, water pollution, soil pollution, urban sprawl, waste disposal, ozone layer depletion, water depletion, climate change and even impact
Efforts to improve the standard of living for humans--through the control of nature and the development of new products--have also resulted in the pollution, or contamination, of the environment. Much of the world's air, water, and land is now partially poisoned by chemical wastes. Some places have become uninhabitable. This pollution exposes people all around the globe to new risks from disease. Many species of plants and animals have become endangered or are now extinct. As a result of these developments, governments have passed laws to limit or reverse the threat of environmental pollution.
During El Niño?s in the Pacific Northwest, the amount of precipitation greatly decreases, the winter temperatures get milder, and winter has below-average precipitation. Some economical and environmental impacts are that erosion is increasing due to severe storm surges, concerns that property built on low-lying areas or on top of unstable bluffs possibly be flooded or threatened by landslides due to regional climate changes, and various salmon species potentially endangered. In California, during El Nino?s they get extreme precipitation and snowfalls. Economical and environmental impacts are heavy precipitation, damage from debris flows or mudslides, and floods from the rain. El Nino seasons in Peru bring so much rainfall that there is now a lake made from the rain, compared to the desert it once was. Several economical and environmental impacts from El Nino include massive floods or mudslides, and since Peru lives in a cold-water zone, it carries many fish that are caught and sold commercially, but during El Nino, a layer of warm water covers the nutrient-rich east coast waters, abruptly stopping the upwelling and the nutrients fail to come up.
Air pollution is the cause of acid rain, smog, global warming and the hole in the ozone layer. Acid rain damages forests, rivers and soils making the environment unsuitable for fish and other wildlife leading to animal diseases. It also influences negatively to farmers on vegetation. In addition, acid rain also speeds the decay of buildings and sculptures costing billions of dollars damage to materials. Moreover, ozone depletion caused by air pollution harms human health from UV radiation which can contribute to skin cancer, cataracts, and damaged immune systems. UV can also affect adversely on crops. Another environmental effect is eutrophication in which concentrations of nutrients in the water foster blooms of algae that impair fish, plant and animal