Climate Change - Group Project

Global climate change is the average climate over the entire planet. The climate is changing and the earth is warming up faster than ever, this is making the scientist concerned. 


The climate of the earth has changed a lot through the years. And it's now affecting every country on every continent. Its disrupting national economies and affecting lives, costing people, communities and countries. The weather is getting more extreme, the sea level is rising and the greenhouse gas emission are on the highest they have ever been in history. 


Scientist have year after year proved that climate change is in fact due to human activities. Still, there are a lot of people claiming that it’s not true, and that the scientists are over exaggerating. However, 97% of scientists agree that is a real problem we should be worried about. 
The current warming trend is of particular significance because most of it is greater than 95 percent probability to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.
Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. This body of data, collected over many years, reveals the signals of a changing climate.
The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century. Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response. 

This graph, based on the comparison of atmospheric samples contained in ice cores and more recent direct  measurements, provides evidence that atmospheric CO2 has increased  since the Industrial Revolution.  (Source: [[LINK||http://www.ncdc.noaa.gov/paleo/icecore/||NOAA]])
This is a picture that shows exactly how high the carbon dioxide level is right now.  
This is one of the reasons why the scientists are more than frustrated over the people that are sceptical over the global issue. 

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