97% of scientists agree humans are causing global climate change. For example, evidence includes rising sea levels, warming oceans and shrinking ice sheets.
Because greenhouse gases trap heat in the atmosphere, this helps regulate temperature on Earth. Without the greenhouse effect, we’d live in an icebox.
Whether it’s agriculture, industry, vehicles, electricity or natural disasters, these are the major air pollution sources that contribute to climate change.
Earth has experienced 5 large ice ages. During these frigid times, hefty layers of ice smothered the planet with temperatures 10°C lower than it is today.
Earth revolves around the sun in a roughly circular orbit. But about every 200,000 years, its orbit becomes more eccentric because of the Milankovitch Cycle.
What makes Earth unique is its ozone layer. Ozone is a colorless gas made up of three oxygen atoms which protects us from harmful UV radiation from the sun.
In flesh and blood, 7.6 billion humans live on Earth. The emergence of humans has left a profound impact. The demand for resources is the human footprint.
Climate feedback loops either amplify or reduce climate change. Positive feedback loops like permafrost melt amplifies climate change because it releases methane.