Effects of global warming – what is causing it? Global Warming happening now – Climate Change is no hoax
Effects of global warming – what is causing it? Global Warming happening now – Climate Change is no hoax
Global Warming Background Information Global Warming is defined as the gradual shooting up of the overall temperature of the earth’s atmosphere as a result of to the greenhouse effect which is brought about the increased levels of carbon (IV) oxide, chlorofluorocarbons, and other types of pollutants. Global warming is dated to the late 19th century when it actually started and has been on the rise. Climate Change, a closely related term to global warming, is the significant change in the statistical distribution of weather patterns where such a change lasts for an extended period of time. This may be decades to millions of years. In simpler terms, climate change refers to the shift or change in average weather conditions or significant time variation in long-term weather patterns.
Deforestation which is also associated with global warming is the clearing of forest cover by man for purposes other than forest use. These may include settlement, grazing, mining, ranching, urban use and other non-forest related activities. Statistics have shown that the most concentrated deforestation activities occur around the tropical rainforests. Global warming creates a different atmosphere for the plants and human beings. It reduces the survival rates of living organisms.
Afforestation is another aspect. This is positive since it is the establishment of forest cover through the planting of trees in areas where no trees existed before. It is also related to Reforestation which is the reestablishment of forest cover where they already existed before.
Forestation covers both the aspects of afforestation and deforestation. It is the establishment of forests or growth of trees on areas that either already had forests or lacked.
Several government policies all over the world always strive to directly engage in forestation programs. Both global warming and climate change are related to processes that take place over an extended period. A lot of scientific research has shown that global temperatures are actually on the rise.
Taking the 1950s as the base years for comparison, most of the changes that took place or have taken place dating all the way through from the mid-19th century have been clearly unprecedented. Temperature Changes Statistics have indicated a general rise in temperature changes.
This is not any healthy for biodiversity. The average warming (for both land and ocean) has been shown to be around 0.85 degrees centigrade between the periods of 1880 – 2012. The rate has been on the upper trend and even doubling in subsequent periods. The global warming rates have therefore remained consistent over the years. This can be evidenced by the rise in sea levels, widespread melting of snow and land ice, increased heating in the oceans, a rise in humidity levels, and earlier timing of spring events such as the flowering of plants.
Effects of global warming
All these changes would never occur on their own, in fact, the probability that these shifts took place naturally is virtually zero. Indicators of a rise in temperature trends The changes in temperature vary from region to region all over the globe.
For instance, since 1979, the land temperatures have shot up almost twice compared to the water temperatures. Ocean temperature gradually compared to land heat. This is due to the larger effective heat capacity of the oceans and due to the fact that oceans lose more heat by evaporation. The average Arctic temperatures have been generally increasing twice faster compared to the other regions. Snow and ice have greatly melted. However, Arctic temperatures remain highly variable. More greenhouse gasses are emitted in the Northern Hemisphere compared to the Southern one.
It is still amazing to note that this does not necessarily impact more on the Northern Hemisphere alone. The gasses stay around the global atmosphere long enough to mix across the two hemispheres. Climatic patterns can evidently take very long to adjust changes. This is explained by the thermal inertia of the oceans and slow responses of other related indirect effects. This can take centuries to adjust. A study had shown that even if greenhouse gas levels were stabilized in the year 2000, the globe would still experience the increase in the temperature levels by about one-half degree Celsius. Another study found out that if the same were stabilized at 2005 levels surface temperatures would still increase by more than a degree Celsius. The explanation behind this is that some of these shifts would still be driven by past activities in an attempt to achieve an equilibrium in the climate system.
A third study based on very simplified climate model indicated that these past natural forcing may actually account for nearly 64% of the committed 2050 surface warming and their effects would disappear with time depending on the human levels of contributions. Generally, global temperature is subject to short term fluctuations that overlay extended trends and can temporarily mask them. This is in accordance with the global warming hiatus as it referred to by the media and scientists. This is the relative stability in surface temperature from 2002 to 2009. It is interesting to note that 16 of the 17 warmest years have all been between 2000 and today.
Temperature changes are mainly caused by greenhouse gasses, aerosols and soot, solar activity, and variations in the Earth’s orbit. Facts about Global Warming The Intergovernmental Panel on Climate Change (IPCC), in its Fifth Assessment Report released in 2014, indicated that it is extremely likely that the human activities have been the most dominant observed causes of warming from the mid-20th century. The most substantial human cause being the emission of greenhouse gasses such as carbon dioxide methane and nitrous oxide. According to the report’s climatic models, the global temperature is like o undergo a further rise of 0.3-1.7 degrees centigrade during the 21st century.
This is as per the lowest estimation of emissions while 2.6-4.8 degrees centigrade is estimated on the higher side. The same findings have been duly endorsed by the by the national science academies of the world’s major industrialized nations. No dispute has arisen by any scientific body of either national or international calibers in relation to this assessment. According to Solomon et al. in their Technical Summary of Regional-Scale Projections, future climate change and associated impacts will vary from one region to another all over the globe. The anticipated changes will include an extreme rise in temperatures, changing precipitation levels, rising sea levels, and expansion of deserts in the subtropics. Warming is expected to be higher over the land surfaces as compared to the oceanic areas and highest in the Arctic, with the subsequent retreat of glaciers, permafrost, and sea ice.
Additional extreme conditions would include unordinary weather events such as heat waves, droughts, flooding during heavy showers and intense snowfall, oceanic acidification; and extinction of certain species due to the ever shifting temperature regimes. These would be very much unfavorable for the general biodiversity.
Human beings will encounter numerous negative effects including a threat to food security due to a famine that may be caused by prolonged droughts or too much rainfall and flooding eventually destroying all the food crops. Human beings would be forced to abandon their homes in some regions due to the potential rising sea levels. Houses would be swept to the ground by sea water and extreme floods. Scientific reason has explained that most of these negative impacts will actually be witnessed and experienced for thousands of years due to the large inertia on climatic systems. The greenhouse gasses will also stay around the atmosphere for the longest of times. These dynamics would not only take place over decades and centuries but may actually persist longer than we all can imagine.
It is important to do all you can in saving the situation. Avoid carrying out some of the negative practices mentioned in this text. If every person would do something positive about the environment, however small it may seem, this would translate into greater positive change all over the world if such people are everywhere. What should we do about the current state of affairs? Some of the societal responses to global warming would include mitigation by emissions reduction, adapting to the effects caused (which is not a very good one), the establishment of systems resilient to the impacts of global warming, and possible future climate engineering.
A good number of countries are members of the United Nations Framework Convention on Climate Change (UNFCCC), whose ultimate role is to prevent dangerous anthropogenic climate change. Party states have actually agreed to cut down emissions considerably and to limit globing warming below 2.0 degrees centigrade or approximately 3.6 degrees Fahrenheit which is relative to the pre-industrial levels. Public reactions are also on the rise. Global warming has become a heated debate in every corner and everyone today is concerned. Are you also concerned? The answer should be in the affirmative since this is an extremely sensitive phenomenon. In 2015, a global Pew Research Center report indicated that a median of 54% considers global warming as an extremely serious problem.
Surprisingly, the report also showed that the least concerns were mainly shown by the Americans and Chinese. This is despite the fact that the two countries’ economies and industrial sectors being actually responsible for the highest annual emissions. Investors can ensure global warming levels go down considerably by accelerating the transition to a clean energy economy.
They can always include climate management strategies in their portfolios. Expanding investment in clean energy is fundamental and engaging other companies in the movement would be very ideal. The governments can invest in proper policies to fight negative environmental changes. Forestation strategies is on the major programs in a bid to increasing and maintaining plant cover.
Policies can be formed in such a way that they actually improve the environment. Legislation can also be formulated to curb environmental malpractices.
For example, those found in violation of laid down guidelines to having a secure environment must be appropriately punished. A lot of politicking and little action is very dangerous. Professionals in the electric sector can provide reasonable contributions towards achieving a clean environment free from pollutants. Engineers in the automobile sector, industries, power stations and all the related fields can always prescribe for safer fuels and sources of energy to power various machines. We can always make use of electricity and other natural sources like solar energy. Using gasses and fuels to power the electronics and machines contribute greatly into the harmful emissions today. Taking shortcuts may lead to irreparable environmental damage. Expected observable effects on the social systems Reduced food crop production is likely to be witnessed. This will be severe in low latitude areas and countries. However, in some areas, food production may actually increase.
These are likely to be found in the higher latitudes. Other areas will receive a mixture of both lower and higher production. Health will be affected. In this area, most impacts are likely to be negative than positive. Some these include injuries and loss of lives from extreme weather conditions. Continuously, floods have swept away people in their homes and injured or killed some.
Those who survive are left displaced and homeless. Indirect effects may be such as under-nutrition brought about by food crop failures. Habitat inundation is expected as a result of the rise of sea levels in islands and mega-deltas. Countries that are low-lying such as Bangladesh may encounter homelessness and displacements.
Some people may remain stateless for example those from countries like Maldives and Tuvalu. Economic effects may be great. Due to crop failure, farmers may be threatened by getting lower incomes. Estimated statistics showed that a whopping US$ 43 Trillion would be lost due to the greenhouse gasses released from permafrost. This is according to the IPCC A1B emission scenario from an additional emission of greenhouse gasses.
Infrastructural effects would be equally severe. Roads and other infrastructural facilities would be greatly downgraded. For instance, persistent permafrost degradation will most likely result in unstable infrastructure in Arctic regions, or Alaska before 2100.
This will seriously impact on roads, pipelines and buildings, as well as the distribution of water and other important human needs Summary As per the foregoing text, global warming is a serious menace with very detrimental effects.
We can respond to this issue through mitigation strategies, adaptation strategies, future climate engineering, engaging in meaningful political discussion, scientific consultations, and through popular media and public inputs.