Figure 2 displays the potential change in cereal yields due to global warming. (Wheeler n.d., p. 7) The majority of the world is colored yellow and red on the upper map. This indicates that most of the world would face a decrease in cereal production to different extends estimated in 2004. The statistics collected by Campbell et al. (2016) proved that an approximately 6% reduction of wheat yields will happen for every degree rise in temperature.
They assert that if no attention is paid to the effects of CO2, grain yields could decrease by up to 30% by 2080 when a relatively hot scenario is considered. This study also forecasts that demand for water for irrigation will notably increase in hotter climates and lead to more competition between household and agricultural use. Furthermore, the authors show that climate change will cause the salinisation and desertification of arable lands and that by 2050, these events will affect 50% of such land. The studies conducted offer estimates of how climate change could affect agricultural markets. The results have generally shown that the effects can be quite severe if adaptation mechanisms are not put into
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).
Global warming, the ozone layers being damaged, deforesting, rivers drying up, unbalancing ecosystem and different kinds of pollution lead to certain climate change. Although all the causes of climate change are made by humans, it is hard to restore the original global balance situation. Climate change becomes a serious ailment of our mother earth. The earth, our home,
“Between 1990-2000 an 82% reduction in glaciers, showing a linear withdrawal of the ice of 10-15m yearly. Under the current climate trends, glaciers of the country will disappear completely within the next 100 years” (Sandra Liboria,n.d, para.2). This is one of the impacts of climate change in Colombia, and the scale of the phenomenon can be appreciated by the alarming numbers that show the environmental disruption of these places. The increase in global temperature due to greenhouse gas emissions is affecting the cooler areas of Colombia. The freshwater that in previous years was frozen is now flowing through the rivers of the territory.
Stemming from the belief that climate change only truly changes a landscape, such as Alaskan’s landscape, this concept of what climate change means to us and animal habits, has changed over the years with climate change playing a bigger role in all parts of an area or landscape. Climate change contains the power to impact these animal habits in that the climate that Alaska is given provides much-needed nutrients, water, and temperatures in the forests, mountains, meadows, rivers, and streams. These, in turn, produce from these climatic sources, plants, and animals that are then used to sustain other parts of wildlife that depend greatly on those other sources. Bears plays upon this concept, through not only showing some of the living and eating habits of the Alaskan Brown Bear but by describing how much the bears found in the film depend upon the salmon that swims in the rivers during the summer months. In this scenario, the bears, and other wildlife heavily rely on the salmon groups as a source of food during the summer months.
Asner et al. (2015) describes different ways of approaching this solution. “...implementation of prescribed fire, firebreaks, and other fire-management approaches, hazardous tree removal, ecological corridor and habitat management, and watershed management.” (p. 6) If California cuts down trees that are dying or are already dead, along with cutting down other hazards like red biome grass that are highly flammable, then the risk of brush fires will decrease. Another solution mentioned in Asner’s article and Dallman (2017) is regulations on how much water California residents use. “Those who use less, up to a certain threshold, will pay slightly less than current Tier 1 rates.
The university of Queensland public health school study showed that if a 20% sugar tax was introduced over 25 years there would be 4400 fewer cases of heart disease, 1100 fewer strokes, 1000 less cancer cases, it would raise $250 million a year, the reduction on annual health spend would be $29 million and it would help stop escalating weight gain. Would you still buy as much soft drink if the price was raised by 50
This could be due to a number of factors such as: Decrease in rainfall average over 9 years. Increase in human population over 9 years, greater population will result in vegetation destruction to make way for buildings and residency. 1950 to 1997 During this phase annual rainfall fluctuated considerably around the long term average. It was also during this phase that the absolute maximum annual rainfall (1791.1 mm) was recorded during 1978. As a simplification one could term this phase the “unsettled
At least half of the population live on less than $1 daily, and “over 80% of the population rely on agriculture for their livelihood.” Currently, about 7 million Ethiopians receive food aid each year (actionaid.org). Climate change, overpopulation, crop or market failure, high costs, economy, and droughts are all factors of famine. However, unstable economy and increase of population are its two main causes (geographyas.info). Ethiopia’s population has risen about 80 million since 1985 and world prices of crops increased, leading to unstable economy in which they can’t “keep up a fair trade of international food aid” (wordpress.com). People from all around the world who live in areas with an unstable economy and/or substandard climate are affected by famine.