Natural gas has a lot going for it. It burns cleaner than other fossil fuels, producing about half the carbon dioxide of coal. Thanks to new discoveries and the U.S. shale boom, it’s cheap and plentiful. But there’s a catch: Gas is tricky to transport from the often-remote fields where it’s found to where it’s needed — places such as China, India and South Korea. In many regions, pipelines simply aren’t practical. The solution? Turn the gas into a liquid by super-cooling it to minus 162 degrees Celsius (minus 260 degrees Fahrenheit). Liquefied natural gas, known as LNG, gets loaded onto massive ships and transported ... (full story)