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.
Direct effects are seen on organisms that feed on the crops. Wider effects are manifested on food chains produced by increases or decreases in numbers of other organisms. The combination of some GM crops with long-lasting herbicides was bad for biodiversity, using other GM crops without these herbicides increased biodiversity. On our planet, 18% of the land mass is used for agricultural production. It is absolutely essential that the yield per unit of land increases beyond current levels.
The Green Revolution was the introduction of new crops and new agricultural technologies. It is called a revolution because of the extensive effect it had worldwide. It was caused by the need for improvement of overall living conditions. It brought about both positive and negative changes to society. It brought an increase in food supply, changes in lifestyle, and changes of the treatment of the planet.
Overall global warming will impact life on earth in many ways but the extent of the change is largely dependent on human activities as scientist have shown that human emissions of greenhouse gases are pushing global temperatures up. It can therefore be concluded that climate change is the long-term averages and variations in the weather over a long period of time were as anthropogenic climate change relates to the effects human activities have on the greenhouse gases and as the greenhouse gases are long-lived, therefore the planet will continue to warm and changes will happen in the future, but the degree to which global warming changes is up to the human activities affecting climate
What is global warming? Global warming is defined as “ an increase in the earth 's average atmospheric temperature that causes corresponding changes in climate, and that may result from the greenhouse effect" (“Global warming”). Natural events and human that causes global warming are believed to be factors to increase in average temperatures. This essay looks into the growing problem of global warming and suggests reasonable solutions to it. It also evaluates the effectiveness of these solutions.
In this regard, studies show that famine has been reduced 20% in this period (Brownell, 2008), food supply raised 12-13% between 1960 and 1990, whereas without the new technologies food production were decreased around 20% and price was increased 35-65%. The other research in Asia shows that with 1% increase in production, the numbers of poor people decrease by 0.48% (Pingali, 2012). Furthermore, green revolution has had a great influence on labor’s life and provided opportunities for them to improve their life. In fact, this revolution has affected labors in some terms such as employment and wage. As I noted above, green revolution has increased productivity, so bulk density of generated plants enhance the need for extra labors for fertilizing, transplantation and weeding (Das,
Unpleasant genetic mutations could result to an increased allergy occurrence of the crop. Some people believe that this science on foods can hamper the nutrients contained by the crops although their appearance and taste were enhanced. 2. May Introduce Risky Pathogens Horizontal gene shift could give increase to other pathogens. While it increases the immunity against diseases among the plants, the resistant genes can be transmitted to harmful pathogens.
At 600C for both peas and maize the respiration rate went down as the enzymes denatured. This suggests that as the temperature increased cellular respiration increased until it reached an optimal level somewhere between 400C to 600C. (Text book ref) BIOLOGICAL UNCERTAINITIES I bought the seeds two days before the experiment attempting to purchase seeds of the same age with almost identical sizes. However, even though I attempted to control the biological factors, some seeds germinated faster and at a better rate than others. The seeds that germinated better would also consequently give a higher rate of cellular respiration than the rest.
One of the common claims is “The world needs more GMOs.” I support the claim that the world needs more GMOs because they are beneficial to human beings in different aspects. Firstly, the use of GMOs can help to increase yield in order to feed on more population. The world population is blooming. The current world population is 7.2 billion and it is forecasted to reach 9.6 billion by 2050 (United Nation, 2013). More population means more demand on foods and crops.
These gases are methane (CH4) and nitrous oxide (N2O). Although both are naturally released by nature, human activities have increased the amount of both, thus causing more problems with climate change. “Climate change is real. Climate change is being substantially increased by humans and the carbon we put into the atmosphere and it appears to be speeding up. If science has made any mistakes, science has been underestimating it” (James