This category contains 14 posts

A Closer Look: Human vs. Natural CO2 Emissions

Aren’t human emissions of CO2 a fraction of those from natural sources? Absolutely. Emissions of CO2 from human sources are dwarfed many times over by emissions of the gas from natural sources. However, it is the human emissions that are throwing off the balance. Take mankind out of the equation, and the Earth’s climate reaches … Continue reading

A Closer Look: The Role of Water Vapor

Isn’t water vapor the primary greenhouse gas? Yes, water vapor is the primary greenhouse gas. In fact, it contributes between 36% and 66% of the Earth’s greenhouse effect that keeps Earth’s temperature hospitable, depending on location and cloud cover. Odds are you’ve noticed the impact of water vapor on temperature without even realizing it. If … Continue reading

Earth atmosphere makes for a thin skin

On any given day I can jump in my car at my home and, traveling at highway speeds and within the speed limit, be at Disney World in just over an hour. Sometimes that’s a blessing. Sometimes just the opposite. You see Disney lies just a scant 65 miles away. Yet, if you were to … Continue reading

A Closer Look: CO2 Fertilization

Won’t increased levels of CO2 just lead to a “greener” planet? Yes, but there’s a catch. Plants utilize CO2 for growth, so, the theory goes, the more CO2 there is, the more plant growth we should see. This is called “CO2 fertilization”. Some species of plant life respond well to it; others don’t. Responsiveness depends … Continue reading



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The Consensus

173 professional scientific organizations (and counting) around the world acknowledge the global impact of rising emissions of greenhouse gases from human activities

The Indicators

Climate Change Indicators Climate Change Indicators NASA GISS - Global Annual Mean Surface Air Temperature ChangeGlobal Temperature Sea level change from 1993 to the present day Global Sea Level Northern Hemisphere Sea Ice Anomaly, 1979-Present Arctic Ice Melt Glacial Retreat, 1980-2010 Glacial Retreat Atmospheric CO2 Concentrations, Mauna Loa Atmospheric CO2 Level