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.
The Fire TV Stick does use an extraordinary amount of data. I have checked it twice watching a single TV episode of approximately 50 minutes, once set at 1080p and once at 720p. Each time the Amazon TV stick used approx 3gb. I watched the same TV episodes on Amazon Prime on my computer at 720p piped to my TV via HDMI.