Global warming is the increase in the average temperature of the near-surface air and oceans of the Earth. This phenomena has been occurring since the mid-20th century and it is projected to continue.
What is the cause of global warming? Scientists have determined that a number of human activities are contributing to global warming by adding excessive amounts of greenhouse gases to the atmosphere. Greenhouse gases such as carbon dioxide accumulate in the atmosphere and trap heat that normally would exit into outer space.
Why should we be concerned about Global Warming?
Global Warming is the greatest environmental threat of the 21 st Century by many scientists, researchers and environmentalists. In the late 1990s scientists reached a consensus that global warming was a cause for concern. So, why should you be concerned about global warming? “ Why Should I Care?”
Global surface temperature increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the 100 years ending in 2005
The Intergovernmental Panel on Climate Change (IPCC) concludes that most of the temperature increase since the mid-twentieth century is "very likely" due to the increase in anthropogenic greenhouse gas concentrations.
More frequent extreme weather is happening all over the globe.
Sea ice is melting in the Arctic and Antarctic Oceans.
The atmospheric levels of the greenhouse gas carbon dioxide, have been increasing since pre-industrial times from 280 part per million (ppm) to 377.5 ppm (2004 Carbon Dioxide Information Analysis Center), a 34% increase. Carbon dioxide concentrations in the atmosphere are the highest in 650,000 years.
Levels of atmospheric methane, a powerful greenhouse gas, have risen 145% in the last 100 years
Ice is melting all over the planet. Glaciers are melting on six continents!
Alaska's glaciers are receding at twice the rate previously thought, according to a new study published in the July 19, 2002 Science. Note how the ice has pulled nearly out of sight from 1914 to 2004.
Reduced rainfall in rainforests as a result of deforestation
Flooding due to rising sea levels
Damage to habitats due to changes in the ecosystem
Changes in water supply – water shortages and contamination
Spreading of tropical diseases - directly related to global warming
Increased air pollution
Stunted coral growth as a result of the doubling of atmospheric CO 2 . According to researchers from Chapel Hill University (North Carolina) the coral reef is disappearing at an alarming rate and it seems it can’t be stopped.
Changing ecosystem Global warming is causing a change in habitat requiring species to adapt and change!
Science, December 3, 2004 Vol. 306, Issue 5702,1686 Is Global Warming A Valid Concern? Number disagreeing with the global consensus that greenhouse gas pollution has caused most of the warming of the last 50 years: Number of scientific studies dealing with “climate change” published in scientific journals between 1993 and 2003:
We Need: Leaders P olitical… Credit: John Decker Nevada Senator Harry Reid Senate Majority Leader Representative Shelley Berkley Representative Dina Titus Senator John Ensign Representative Dean Heller
Pass Federal Legislation Monitor Your Elected Officials Records on Environmental Concerns
Help schools, businesses, and local governments cut their energy use.
Encourage local, state and federal government to protect open spaces, farmland, and forests
The Las Vegas Strip will soon be going dark, and the reason is to help Mother Nature. In just two months, Las Vegas will participate in a global movement known as "Earth Hour," all in an effort to raise awareness regarding climate change and global warming.