The increase in Earth’s temperature is causing the glaciers to melt and there is an expansion of warmer seawater. Due to the melting of glaciers, the sea level in the 20th century has risen about 16cms higher. Scientists predict that in the 21st century it might rise up to 59cms which might become a threat to marine communities. 2. The warmer temperature of the Earth has caused heavy rain falls in many areas causing floods in parts of the Earth.
We can see that some of the main cause of this is due to mass input and ocean warming. It is also mainly associated with the ice age. It is clear that the end of the ice age has caused polar caps and ice sheets to melt resulting in the rise of sea level all over the world. We are also aware that due to human influences global warming plays a huge part too. When looking at global sea level rise we are introduced to global records.
The global average temperature increased by about 0.8°C from 2005, but the current warming trend is 0.13 – 0.16 °C per decade, and it is projected to continue to rise at a rapid rate (Hansen et al.2010). The effect of the activities of man especially in technologically advanced nations, has brought about emission of CO2 and other greenhouse gases which has resulted in the depletion of the ozone layer and global warming (Hegerl et al., 1997; Tett et al., 1999, 2002; Stott et al., 2000).These can be seen from the changes in meteorological parameters such as temperature and precipitation. The Intergovernmental Panel on Climate Change (IPCC) likewise agreed to this, that the varying greenhouse gas concentrations were more to be the major cause of climate change (Climate Change 2001: The Scientific Basis—Contribution of Working Group I to the Third Assessment Report of IPCC, 2001). However, climate change pose as a great threat to biodiversity, the ecosystems, economic growth, global food security, life as a whole and encourages inequality (Kurnik, 2015 - for IPCC). In view of this effect of climate change, it is of necessity to project and observe
After the Industrial revolution, global warming has increasingly becoming a threat. Consequently, global warming is becoming a bigger threat that needs to be addressed before even more serious damage is done. “Scientific evidence for warming of the climate system is unequivocal” -Intergovernmental panel on climate change. One of the many questions that scientists and people alike are asking and trying
Many scientists believe that our production of carbon dioxide and other greenhouse gases is having a heat effect on the atmosphere and this could be dangerous for the environment and human life (Hansen, 2011). This article will examine the causes of global warming, its impacts and the remedies we can do to combat global warming. Many problems could result from global warming. Increase in average temperatures could lead to ice melting in both polar ice caps and mountain glaciers. Global warming also bring extreme weather events, causes sea level to rise, increases ocean acidification and causes lakes and oceans to warm rapidly than surrounding environment.
The water level of oceans rose and then fell hundreds of meter ( they would be flooding and exposing large extent of land). Because of this shells can be often seen on sea shores ( shells are in the bottom or middle of the sea). The sea level, was about 400 feet below the current levels and the levels have been rising gradually every year and this was about 20,000 years ago. There are two types of phenomena/changes that control the sea level. The first one is Eustatic Change i.e.
With continuous Ocean and atmospheric warming, sea levels will continue to rise at a higher rates than currently recorded this year. According to the NOAA tide data the sea rises Between 0.8 to 3.3 mm Per year with an average rate of 1.8 per year. Greenland and Antarctica together hold enough ice, that if it all melted sea levels would rise more than 80 meters. Rising tide data published by NOAA has suggested that low lying coastal areas will be affected the most by this problem. Places Like the low lying parts of the Netherlands, Brazil, Egypt, America, Japan, India, Indonesia, Vietnam and
Climate change results in incessant hurricanes, which causes detrimental flooding, and is also damaging to the economy in the United States. Temperatures are the highest they have ever been in over three million years; these temperatures are projected to continue to climb over the next several years (Weeks). What does this have to do with hurricanes? Hurricanes are triggered by an increase in atmospheric moisture and warmer ocean temperatures (Tigay). The rising temperatures in the atmosphere have caused the ocean’s temperature to rise.
Climate change refers to a change in an average weather conditions, or in the time variation of weather around longer term average conditions (for an average 30 years). According to the definition of World Meteorological Organization (WMO), Climate is the measurement of the mean and variability of relevant quantities of certain variables (such as temperature, precipitation or wind) over a period of time, ranging from months to thousands or millions of years. Climate change itself is a natural process; however, the global temperature is rising rapidly due to an anthropogenic activity which is changing the climate of the earth faster than it would change naturally. Scientists from all over the world have independently verified this evidence many times. Average temperatures around the world have risen by 0.75°C (1.4°F) and over the last 100 years about two thirds of this increase has occurred since 1975.
Besides that, experts noted that the oceans are absorbing the sun’s heat in an increasing rate. As NASA explored, the oceans have absorbed much of this increased heat, with the top 700 m of ocean showing warming of 0.302 ⁰F since 1969. Due to