A: Global warming is a driving force behind climate change. It refers to the overall warming of the planet over a long period of time and is driven by excessive greenhouse gas emissions. Climate change both encompasses global warming and refers to its effects. Warmer temperatures have affected our climate in numerous ways, changing weather patterns and consequently changing other natural elements on Earth, such as oceans, forests, biodiversity, etc. More at NASA
Glaciers are melting, sea levels are rising, forests are being decimated, extreme weather is accelerating and wildlife is scrambling to keep pace with unprecedented rates of extinction reported. It has become clear that humans have caused most of the past century’s warming by releasing heat-trapping gases as we power our modern lives. Called greenhouse gases, their levels are higher now than at any time in the last 800,000 years.
While many people think of global warming and climate change as synonyms, scientists use “climate change” when describing the complex shifts now affecting our planet’s weather and climate systems—in part because some areas actually get cooler in the short term. “Global warming” refers to the rise in global temperatures due mainly to the increasing concentrations of greenhouse gases in the atmosphere.
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