The glaciers are melting and shrinking and the ice on the rivers and the lakes is melting faster and earlier than the actual season. The melting of glaciers and ice on the sea is resulting in rise of the global sea level. Since 1880, the level of sea has increased about 8 inches, and at this rate it is expected that it will rise another 4 feet by the end of the 22nd century (Lindsey). In the coming years, storm heaves and the tidal waves can combine with the rise in sea level and subsidence of land that can lead to increase of flooding in many areas of the world, and due to deforestation and lack of other precautionary measures in many areas of the world, we will not be able to stop these floods. The water in the oceans take a huge amount to time to respond to the warm conditions at earth’s surface.
CAUSES AND EFFECTS OF CLIMATE CHANGE Glaciers are melting, sea levels are rising, cloud forests are dying, and wildlife is scrambling to keep pace. It's becoming clear that humans have caused most of the past century's warming by releasing heat-trapping gases as we power our modern lives. Called greenhouse gases, their levels are higher now than in the last 650,000 years. We call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. As the Earth spins each day, the new heat swirls with it, picking up moisture over the oceans, rising here, settling there.
Many effects can be seen in the future if global warming continues. It includes economic consequences, more hurricanes, a spread of diseases and earthquake. Human-emitted greenhouse gases cause excess heat which has warmed the world’s oceans during the past decades. Water expands when it warms, which leads to sea level rise (USNRC “Climate Change: Evidence, Impact, and Choices”). Moreover, the global warming has affected the life of other living things such as animals and plants.
Once carbon dioxide in the atmosphere increases 1 time, the average global temperatures will rise 1.5 ~ 4.5 ℃, and the temperature increases in the polar regions are about 3 times higher than the average. There are many factors cause the global warming and the global warming has brought a lot of serious consequences. Therefore people began to attach importance to this phenomenon. Numerous countries and organizations banded together to discuss the countermeasures. From 1981 to 1990, the global average temperature increased 0.48 ℃ than it was 100 years ago.
Scientists also predicted that the average temperature could increase between 1.4 to 5.8°C by the year 2100. Greenhouse gases can cause global warming. Based on Collins Dictionary, The greenhouse effect is the problem caused by increased quantities of gases such as carbon dioxide in the air. These gases trap the heat from the sun, and cause a gradual rise in the temperature of the Earth's atmosphere. Gases such as carbon dioxide, sulphur dioxide, methane, nitrous oxide, halocarbons and so on, built up in the atmosphere due to increased use of energy and the expansion of global economy in the 20th century.
Although people stop adding extra greenhouse gases to the atmosphere these days, oceans will continue to get warmer for many years because they slowly absorb extra heat from the atmosphere. Warmer oceans affect weather patterns, cause more powerful tropical storms, and can influence a lot of sea life, such as corals and fish. Warmer oceans are also one of the major causes of rising sea level. • OCEAN
The Earth’s Temperatures are getting warmer, so that means that the water temperatures around the world are increasing to. The articles have found that “The 3% of scientists that do not believe in Climate Change” (California Heat Waves). The three topics that are going to be talked about is Global Warming, Hurricanes, and Sea Level Rise. Over many years Earth is getting warmer, this issue needs to be solved, and fast before time is too late. The frequency of Hurricanes are becoming more and more common, the intensity of the storms are getting stronger, and stronger faster.
The ice from glaciers, the ice sheets and permafrost are already melting and will probably continue to melt at a higher rate in the future leading to rises in ocean levels (IPCC, 2014). Furthermore, it causes the emission of methane (also a GHG), stored mostly in the Arctic regions (Shakhova et al., 2007) which in turn leads to increased heat in the atmosphere, further aggravating climate change. GHGs cause the oceans to contain increasingly more acids, which damages coral reefs and negatively influences the amount of CO2 the ocean can absorb (IPCC, 2014). Weather conditions are becoming progressively extreme and a rise in floods, hurricanes and temperatures can already be measured and will further increase in the future (USGCRP, 2014). Weather incidents could destroy forests and swamps, which causes less CO2 to be absorbed naturally.
The greenhouse effect is an essential element to help maintain our planet warm to be able to sustain life. However, human activities are enhancing the greenhouse effect by adding excess greenhouse gases to the Earth’s atmosphere. In this century, greenhouse gas levels are at its maximum compared to the past 3 million years and has been steadily increasing. This is due to the rise in human activities. For an example, deforestation is a major cause of global
Climate change can also be defined as a change in global temperatures for extended durations (Maqbool, 2013). The health and survival of humans and ecosystems on the Earth depends on the world’s climate (McMichael, 2003). King (2004) believed that climate change is a threat to human civilisation (Gill et al., 2009, p.324). Global warming, its consequences and human intervention The Earth’s surface temperature worldwide has risen by nearly 0.50C since 1975 (Hansen et al., 1999; Jones et al., 1999; as cited in Hansen et al., 2000, p.9875); and this increase has been attributed to the rising human activities which release GHGs into the Earth’s atmosphere (Hansen et al., 2000). Heating up of the Earth’s surface adds more vapour to the atmosphere which further builds up increases the moisture levels in storms (Meehl et al., 2000, p.433).