Posted on November 18, 2016
NASA’s article begins down below:
Most climate scientists agree the main cause of the current global warming trend is human expansion of the “greenhouse effect”1 — warming that results when the atmosphere traps heat radiating from Earth toward space.
On Earth, human activities are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2. To a lesser extent, the clearing of land for agriculture, industry, and other human activities has increased concentrations of greenhouse gases.
Posted on November 17, 2016
In case you didn’t already know NASA does more than just launch fancy rockets and satellites into space. They’re also big into monitoring meteorology all around the globe. They’ve been on record many times saying that climate change is very real and has been ongoing for the last 136 years. Scientists have also been on record saying there’s an over 90% chance it’s being exacerbated by humans (i.e. fossil fuel consumption) and will have disastrous results if things keeps going the same trajectory.