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.
Anthropogenic emissions contribute substantially to global warming. ... This is
largely due to human activities; primarily the burning of fossil fuels, but also due
Vital Signs of the Planet: Global Climate Change and Global Warming. What is
the ... On Earth, human activities are changing the natural greenhouse. Over the ...
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.
Human activities contribute to climate change by causing changes in Earth's
atmosphere in the amounts of greenhouse gases, aerosols (small particles), and
How do we know current global warming is human caused, or man made? Is
global ... How do we know that recent CO2 increases are due to human activities
Direct observations find that CO2 is rising sharply due to human activity. Satellite
and surface measurements find less energy is escaping to space at CO2 ...
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 ...
Feb 2, 2009 ... Humans cause global warming with our unique ability to capture and use .... I
think the clear point was which activities cause the warming.
Human activities contribute to climate change by causing changes in Earth's ...
these gases and particles can lead to a warming or cooling of the climate system.