Strictly speaking, renewable energy is just what you might think: perpetually available, or as the U.S. One of them centers on the definition of renewable energy. ![]() Of course, renewables-like any source of energy-have their own trade-offs and associated debates. ![]() Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and habitats, rising seas, and a range of other impacts. Global warming is one symptom of climate change, the term scientists now prefer to describe the complex shifts affecting our planet’s weather and climate systems. Fossil fuels are embedded in nearly everything we do, and as a result, the greenhouse gases released from the burning of those fuels have reached historically high levels.Īs greenhouse gases trap heat in the atmosphere that would otherwise escape into space, average temperatures on the surface are rising. All of those factors have contributed to a renewable energy renaissance in recent years, with wind and solar setting new records for electricity generation.įor the past 150 years or so, humans have relied heavily on coal, oil, and other fossil fuels to power everything from light bulbs to cars to factories. ![]() That's because renewable energy sources such as solar and wind don't emit carbon dioxide and other greenhouse gases that contribute to global warming.Ĭlean energy has far more to recommend it than just being "green." The growing sector creates jobs, makes electric grids more resilient, expands energy access in developing countries, and helps lower energy bills. In any discussion about climate change, renewable energy usually tops the list of changes the world can implement to stave off the worst effects of rising temperatures.
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