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.
On November 19, 2014, Amazon released a smaller version of the Fire TV called the Fire TV Stick. It is an HDMI-port plug-in device that replicates much of the functionality of the larger Fire TV. Its hardware is slightly different, it has 1 GB of RAM, 8 GB of storage, weighs 0.9 oz.