| Countries around the world are focused on mitigating the effects of climate change. And getting rid of greenhouse gases is fast becoming a top focus. One of the quickest ways to lower pollution is to reduce fossil fuel burning. The nation's transportation infrastructure is a great place to start, as it's responsible for 29% of greenhouse gases. But we can't just stop burning oil and natural gas in a year or two... We can, however, start burning less of them right now thanks to hydrogen gas. When hydrogen is burned, it combines with oxygen. This reaction generates energy and heat. But that's where the similarity to fossil fuels ends. When burned, fossil fuels produce gases and other pollutants. When you burn hydrogen, water is the "exhaust." And that's why car companies are harnessing this clean energy to fuel their EVs. Rapidly Developing Technology Many countries are implementing policies to greatly reduce vehicle emissions. Some have even started to restrict sales of internal combustion engine vehicles. As a result, nearly every vehicle manufacturer is designing and selling EVs. The biggest issue has been battery life, though that continues to improve. This year, Tesla will release a battery that can power its EVs for 500 miles or more. But EV manufacturers are keeping one eye on hydrogen fuel cell technology. And for good reason. Hydrogen fuel cells complement EV battery technology. A fuel cell uses clean energy sources, such as hydrogen or other fuels, to produce clean electricity. In the case of hydrogen, the only byproducts are electricity, water and heat. The reaction produces no carbon dioxide or other toxic byproducts. Fuel cells have a wide variety of potential applications. A small fuel cell can power a laptop computer. A big one can run a utility power station. Other applications include emergency power backup, portable power, material handling and transportation. Fuel cells also operate at higher efficiencies (up to 60%) than combustion-based engines. | 
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