Climate change otherwise known as global warming has been an ongoing issue for decades. Beginning in the 19th century, climate change has increasingly affected Earth and its atmosphere. Rising levels of carbon dioxide are warming the Earth’s atmosphere causing rising sea-levels, melting snow and ice, extreme fires and droughts, and intense rainfall and floods. Climate change has and will continue to affect food production, availability of water, and can add to many health risks in humans and animals. In fact, in an article by Justin Gillis titled, “Scientists Warn of Perilous Climate Shift Within Decades, Not Centuries” he focuses on a paper written by former NASA climate scientist, James E. Hansen, explaining the effects of climate change …show more content…
As mentioned in an article named, “Causes of Drought: What 's the Climate Connection?” different types of droughts and how they are created is explained. It is mentioned that “agricultural droughts can occur for a variety of reasons, including low precipitation, the timing of water availability, or decreased access to water supplies” (UCSUSA). All of these aspects are affected by climate change, therefore, increasing the risks of droughts. Water is a vital source for agriculture; in fact, many of the world’s water supply already goes to agriculture. To be specific, 70% of fresh water goes to agriculture and this can increase up to 90% in drier regions (Gilman). With that said, weakened water supply is deemed to influence agriculture worldwide. Moreover, in Larry Gilman’s, Agriculture: Vulnerability to Climate Change, he discusses the vital effect climate change as a whole can have on agriculture. He specifically mentions the effect water can have on food production stating, “As of 2002, about 30 countries were facing chronic water shortages, a number expected to exceed 50 by 2050. Water shortages will impact both health and agriculture directly” (Gilman). With the expanding effect of climate change throughout the world, water shortages have been an ongoing issue in many countries. As the author mentions, these numbers drastically …show more content…
Although some believe that increased CO2 levels will help agriculture as it will result in more plant growth, that may not be the case. As Larry Gilman states in his book, Agriculture: Vulnerability to Climate Change, “In the 1970s and 1980s, studies suggested that increasing CO2 levels would stimulate crop yields and increase the drought tolerance of crop plants. If true, this offered hope that the primary cause of global warming—high atmospheric CO2—might offset some of its own ill-effects, at least in regard to the human food supply.” However, in order for increased CO2 levels to actually help agriculture, water is needed. Since climate change is the cause of many water shortages and droughts, it is likely that increased CO2 levels will prove to be damaging to agriculture. Actually, one of the results of increased CO2 levels are the development of more weeds, pests, and diseases. As mentioned in an article called, “Effects of Climate Change on Agriculture” by North Carolina State University, “Weeds have become more prolific and are expected to invade new habitats as global warming increases.” The article also mentions that pests that may carry plant diseases will become more widespread resulting in herbicides becoming less effective (North Carolina State University). With these problems arising from increased CO2 levels, agriculture will be deeply affected.
A drought is an occurrence where there is very little rainfall, which results in a shortage of water. Drought can last up to ten years in certain places, especially desert areas. Droughts are extremely difficult to predict, and produce cracked land. They are very dangerous in places with little food and little water. Droughts can also affect farmers, due to it being so hot that their plants die.
Many have to walk long distances each day just to access usable water. This creates the demand for water throughout the country. Water scarcity creates a huge demand for water causing issues to arise throughout all parts of the world.
Environmental Impacts of the California Drought Introduction Over the last several hundred years, many scientists have proven that Climate change, or the other name, “Global Warming” that people think is politically incorrect, is a major problem in our future if we do not act to reverse its effects. One place around the world that has experienced these effects of this world issue is California. California has been in a major drought for several years now, and looks to continue for several years to come if nothing is done to mitigate the effects of climate change.
Climate change is an irreversible consequence of the damage we do to our Earth. If we do not change our ways, the global temperature will swell, causing an unchangeable series of events, consecrating detriments onto all the existence upon Earth. In only about 140 years, the average global temperature has increased 0.8 degrees celsius, and the ramification is the irreparable destruction of the place where we and millions of other species live. The most important consequence of climate change is the global increase in temperature and how that is affecting various animal species all over the Earth, the health of humans, and the rapid rise of sea level.
Droughts are usually defined as acute water shortage, where there is a shortage of water supply to meet the needs of people due to lack of rainfall. As Australia is a dry country, droughts can go on for an extended period of time. Impacts are very serious and may also cause other natural disasters such as bushfires. The Australian Bureau of Metrology classes droughts into two main classes - serious and severe.
1. Introduction: Carbon dioxide (CO2) is one of the important green house gases (GHGs) emitted in the atmosphere through various human and natural activities. The human activities include rapid industrialization and urbanization, deforestation, excessive use of fertilizers in agriculture, excessive use of fuels, papers and many other manmade resources whereas natural activities include volcano eruption, forest fires, earthquakes etc. Emission of GHGs in the atmosphere leads to global warming which is one of the primary reasons behind the atmospheric changes that affect the human life directly or indirectly. The consequences of global warming are extremely harsh seasons, untimely rains, extended summers and floods that results in human deaths, destruction of flora and fauna in addition to the huge economical losses.
Without enough water, farmers can grow as many of their crops as they used too. The shortage of crops leads to higher prices in the markets. Climate change also affects what type of vegetation the farmers can plant. Not all vegetation can flourish in higher temperatures. Therefore, Californians will have to import the vegetation that they lack from another country or state.
Global warming is all about adverse climate change caused by the trapping of greenhouse gases in the earth's atmosphere that affects biodiversity and poses a serious health hazard. Scientists have found strong evidence that human activities have caused most of the warming since the mid-1900 (“global warming”). Humans are responsible for
“As the population rises, the world 's water usage will rise. Many areas of the world already suffer from a lack of fresh water,” (Population Control 3). If the world runs out of freshwater, humanity will plunge into chaos. Humanity needs water to survive, and that is a fact. Relationships between countries will be broken apart over disputes for water.
2% of earth’s fresh water is frozen in ice caps; and, only 1% of earth’s fresh water is available to consume. 2. Unfortunately for our planet, supplies of water are running dry at an alarming rate. The world’s population continues to soar; but, that rise in numbers has not been matched by an increase in supplies of fresh water. Let’s talk about what is going on around the world; I will mention to you just a few major cities, and show you how they are dealing with water shortage.
The impact of climate change is being felt throughout the world; however, the situation is more pronounced in developing countries because many households, social groups and regions have a limited capacity to adapt to climate variability and change (UNFCCC, 2007; IPCC 2007). The Intergovernmental Panel on Climate Change (IPCC, 2007:6) defined climate change as any change in climate over time, whether due to natural variability or as a result of human activity. The (UNFCCC 2007) espoused that agricultural production on the African continent relies primarily on rainfall. As such, any interruption in rainfall pattern and intensity will adversely affect the poor, predominantly the smallholder farmers (ibid).
Beavan claims that “by 2025…two-thirds of our world’s population will face water scarcity” (Beavan 193). In the US alone, “the average single family household uses some seventy gallons of water every day” (Beavan 193). Sometimes people do not realize that the potential for water scarcity is a big of a problem as it is because they personally do not see any effects in their area. However, this issue hurts everyone, including the American population. There are already states that are out of water or dangerously close to it and “if water use continues unchecked, thirty-six American states will suffer water shortages” (Beavan 194).
Shortage of Fresh Water, with overpopulation the demand on the world’s fresh water resources. Giving reason that 1 percent of the earths water is fresh and within reach, this generates a major issue. it has been projected that human demand for fresh water will hold approximately at 70 percent of what is accessible on the planet by 2025. Regions that already have limited access to