Global warming: the increase in Earth’s average surface temperature due to rising levels of greenhouse gases. stones disease. Global warming - Global warming - Carbon dioxide: Of the greenhouse gases, carbon dioxide (CO2) is the most significant. Despite that, many nations are unwilling to pay the cost of switching to a green economy. Natural sources of atmospheric CO2 include outgassing from volcanoes, the combustion and natural decay of organic matter, and respiration by aerobic (oxygen-using) organisms. may lead to increase in kidney . A: Here's a simple definition of global warming. (And yes, it's really happening.) The basic physics of global warming are as well understood as any scientific phenomenon. With regard to global warming, all nations have an interest in stopping it. May 15, 2008 . Though this warming trend has been going on for a long time, its pace has significantly increased in the last hundred years due to the burning of fossil fuels. Global warming is the long-term heating of Earth’s climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth’s atmosphere. Geneva (Reuters) – Obesity . As the human population has increased, so has the volume of fossil fuels burned. Global warming is the long-term warming of the planet’s overall temperature. ScienceDaily – Global Warming . to increased terrorism. Climate change: a long-term change in the Earth’s climate, or of a region on Earth. (And yes, it's really happening.) To understand what this means for humanity, it is necessary to understand what global warming is, how scientists know it's happening, and how they predict future climate. Global warming refers to the steady temperature rise on our planet. GLOBAL WARMING: WHAT, HOW, WHY? Although the amount of energy coming from the sun does vary and may have been responsible for warming in the past, however, NASA and the Intergovernmental Panel on Climate Change (IPCC) have ruled this out as a cause of the current warming … to global warming. Page 9 2008 The Earth receives its warmth from the sun, so it's reasonable to suspect that our home star may be one of the reasons for global warming. June 18, NIA - Global warming could lead . contributes to global warming, too. Within scientific journals, this is still how the two terms are used. We often call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. May 15, 2008 . This is a photo of Earth taken by the EPIC imager on the DSCOVR satellite on March 29, 2017. A prisoner’s dilemma is a situation where two people fail to cooperate despite shared interests. AP - Earthquakes stronger due . June 26, 2008. 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