If hydrogen were to replace fossil fuel entirely, the researchers estimate that 60 to 120 trillion grams of hydrogen would be released each year into the atmosphere, assuming a 10-to-20-percent loss rate due to leakage.
The Fire TV can have a wired connection, the Fire TV Stick is wireless only. The Fire TV has Dolby Digital Plus & 5.1 surround sound, the Fire TV Stick is Dolby Digital Plus only. The Fire TV can do all Amazon games including hi-res video games, the Fire TV Stick only has a limited set of games it will play.
Thanks and happy holidays! The biggest difference between the Fire TV Stick over the Fire TV is that the stick fits directly in an HDMI port on your TV. The Fire TV is a hockey puck (like the Apple TV) and needs a (not included) HDMI cable to connect it to the TV.