There is strong evidence that human activity is a major cause of global warming.
In a study, models based on man-made emissions of greenhouse gases matched the real world observations almost precisely.
Anthropogenic emissions contribute substantially to global warming. ... This is
largely due to human activities; primarily the burning of fossil fuels, but also due
Illustration of how global warming works. Human activity--such as burning fossil
fuels--causes more greenhouse gases to build up in the atmosphere. As the ...
Carbon dioxide has caused most of the warming, science tells us. We can ...
Scientists are more confident than ever that humans are causing global warming.
Vital Signs of the Planet: Global Climate Change and Global Warming. What is ...
and other human activities has increased concentrations of greenhouse gases.
How Do We Know that Humans Are the Major Cause of Global Warming? ... that
emissions of heat-trapping gases from human activities have caused “most of ...
Apr 7, 2015 ... "Multiple lines of independent evidence confirm that human activities are the
primary cause of the global warming of the past 50 years.
Is Human Activity Primarily Responsible for Global Climate Change? .... Global
warming caused by human-produced greenhouse gases is causing the Arctic ice
May 29, 2014 ... The facts don't add up for human-caused global warming ... “Do you think human
activity is a significant contributing factor in changing mean ...
Apr 18, 2009 ... To understand how humans cause global warming, it is important that you are
aware of the link between your daily activities and the ...