David illustrates that due to the planet getting warmer as carbon is released along with methane and other greenhouse gases, our air becomes too polluted and harmful. Also because of the increase in CO2, it would cause intense wildfires and smog which would again increase the CO2 levels, thus going in a continuous cycle. The sixth and seventh scenarios described how increases in temperature could cause violence and how climate change could result in economic collapse as fossil fuels would be exhausted. David uses logic to describe how wars would increase due to limited resources and how the economy would crash due to the intense spending of money to fight climate change. The last scenario again relates to food.
Climate change, sometimes referred to as global warming is the drastic change in weather patterns that are occurring across the globe. It particularly means the rise in the average surface temperatures all across the world. A major cause of this problem is the burning of fossil fuels to produce energy. The gases, carbon dioxide, methane, chlorofluorocarbons, nitrogen oxides, water vapour and others released by the burning of these non-renewable resources forms a blanket above the earth’s surface which allows heat to enter the earth but prevents its escape to space resulting in the rise in global temperatures. Today, this issue has become an increasing threat to places, people and animal species.
The need of the hour is combating environmental degradation and climate change. Climate change, or specifically, global warming, is a phenomenon that occurs when carbon dioxide, methane and other “greenhouse” gases accumulate in the Earth’s atmosphere and trap the sun’s heat. In 2007, the United Nations Intergovernmental Panel on Climate Change (IPCC) concluded that the warming of the Earth’s climate — including an average global surface temperature increase of about 1 degree Celsius during the 20th century — is “unequivocal” and due largely to anthropogenic activities such as burning fossil fuels in automobiles, factories and power plants . The recently concluded COP21 Climate Conference at Paris in December 2015 proposes to give to the world, a comprehensive and uniform agreement to tackle climate change. Countries are waking up to this emergent call to preserve that which is left of the environment for a sustainable future for mankind.
Climate Change is generally defined as a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels. It has been lately causing several problem to our Earth. Starting from harming the nature with its plants, animals and atmosphere; ending up in harming us as humans in our health and our dependency on nature. Almost all of the researches repeat every single information. However, they leave behind the most momentous question unanswered.
Climate change is the most rising issue of the modern world that is threatening our planet from the last few decades. In the simplest definition, the term climate change refers to the rising of the planet’s temperature, particularly an increase in the average atmospheric temperature. It should be noted that in the last few decades, many scientists and ecologists has discovered the Earth temperature is increasing at an alarming rate and has affected the planet in numerous of way. The constant change in the climate due to various causes is threatening the preservation of the Earth and its human life. It should be noted that the climate change is linked with several of the human activities that are further directed towards the global warming.
Nowadays, we are living in a world with the change of environment such as the Earth warming, sea levels rise, drought, flood ... Climate change is considered as a danger of the world. Vietnam is one of most vulnerable countries by the effects of climate change. Climate change is likely to exacerbate existing threats to natural resources, agriculture, food security, infrastructure and health and pose a major threat to economic development and human health, and
There are many climate changes that will affect the economy and the amount of debt that we are in as a country. As global warming changes and the weather changes that causes different natural disasters to occur. When different storms strike different areas that causes us to make the move and help those lives who have been affected by the tragic disaster. 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.
Every single day, humans emit greenhouse gases into Earth’s atmosphere. These gases keep Earth in a life-supporting temperature of about 15 degrees Celsius, but too much of these gases can also eradicate life too. Since the Industrial Revolution, greenhouse gas emissions have increased. The excess of these gases now become the causes of life-threatening problems. Excess of greenhouse gases in the atmosphere is harmful to the environment because it causes global warming, increases the acidity of the ocean, and depletes the ozone layer.
it is firmly believed that natural causes involving vocalnic eruption , ocean current , solar variation and the earth 's orbital change are primarily responsible for substantial climate change . Nevertheless , if all issues related to climate change are taken into deliberate consideration , a conclusion drawn will be that human activities are a chief culprit of climate change . Significant changes in climate are regarded as a severe consequence of environmentaaly damaging human activities including deforestation , fossil fuel combustion and irrational land use. The initial factor showing human significant contribution to climate change is deforestation. Human beings destroy forests to create farmland and pay the way for industrial development , become a common phenomenon .
The levels of carbon dioxide in our atmosphere has been rapidly increasing ever since the Industrial Revolution. In 2011, CO2 counted for 84% of all greenhouse gases emitted by the US. Though there are many greenhouse gases, carbon dioxide is the one that poses the greatest risk if it continues to build up in the atmosphere. The accumulation of CO2 absorbs the heat released by the earth that would otherwise leave into space, causing Earth’s temperature to rise. This unusually rapid increase of Earth’s temperature due to excess greenhouse gases in the atmosphere is known as “Global Warming”.