Just....I don't know...prius over-exposure perhaps?

**hannibal** · 07-23-12, 10:54 PM

Originally Posted by ninja|oaklandr

I bet in our lifetime we never see mass produced hydrogen cars.

Honda FCX Clarity Overview - Fuel Cell Electric Vehicle - Site

-H

**DJ Ms. White** · 07-23-12, 11:10 PM

I thought diesel actually burned pretty clean, and gets great mileage, so you have to buy less fossil fuels during the year?

Glad my cousins aren't like that; they don't get preachy; instead, they just see how far they can go on a single tank.

**Option hunter** · 07-23-12, 11:44 PM

I don't normally stick my head in here because of all the drama, but since I see the subject of Hydrogen powered cars popped up, let me share with you why I don't think it is a good idea.

First off, yes, using a Hydrogen powered car will result in one kind of emission. Water. More importantly, a lot of water vapor. Particle for Particle, Water Vapor is a worse Greenhouse gas then Carbon Dioxide, Methane, or pretty much any kind green house gas out there (I said pretty much, so if there's worse ones, then please tell me). I've done numerous searches on this subject in the past few seconds, and they've all come up with the same thing. Water Vapor is a bad greenhouse gas. And think about it. Ever notice how it feels so much hotter in humid climates then dry ones? That's because water vapor traps heat so much more efficiently then Carbon Dioxide or Methane.

You might say (And would be correct to say) that there's already a lot of Water Vapor in the atmosphere already. There's not much we can do about, because of evaporation. There's a lot of liquid water on earth, and evaporation happens all over the planet all the time in warm climates. All the water vapor goes into our atmosphere. But think about what would happen if all the cars in the world started emitting water vapor? Drastic example, yes, but not impossible. So suddenely, there's a lot more water vapor in the atmosphere because of this, trapping heat. This creates a "Positive Feedback Loop". Basically what this means is that with more water vapor in the atmosphere because of hydrogen powered cars means more heat trapped which means more evaporation of oceans, lakes, and rivers, which means more water vapor entering the atmosphere from those sources, which means more heat getting trapped, and so on and so forth.

This website here does a fair job of explaining it. I suggest you read the basic part and the intermediate part.

Explaining how the water vapor greenhouse effect works

This is why, in my opinion, I don't think Hydrogen powered cars are a good idea. Call me a damned hippie for it, but I want to protect my planet.

**Xavsnipe** · 07-23-12, 11:53 PM

Originally Posted by Alundil

sigh - guyver sarcasm fail - I know the Eagles.....

lol +1

**ninja|oaklandr** · 07-24-12, 06:58 PM

Originally Posted by hannibal

Honda FCX Clarity Overview - Fuel Cell Electric Vehicle - Site

-H

200 worldwide is still far from mass produced. Time will tell.

**ElFuriosoGato** · 07-24-12, 07:13 PM

Originally Posted by Option hunter

Positive Feedback Loop

A positive feedback loop is fine if your gain is less than unity. Humans would never be able to produce enough H2O vapor to cause a truly unstable water cycle. Also, more evaporation would mean more fresh water for our expanding populace, even if it raised salinity of the ocean (negligibly).

**h7g6f5** · 07-24-12, 07:34 PM

Coming late into this conversation. So, my apologize. I watched the video that was posted and was WTF? Followed by ahahhaha. America was built by Diesel Trucks and hardworking people. AMERICA FUCKK YA! I was wondering what kind of car she was driving before she bought a Prius and when she became tree hugger. Glad the guy kept his cool and let the women speak her mind. Until we can find a very good alternative fuel I still want my 92+ octane gas for my car.

Respectfully,
h7g6f5

**flame** · 07-24-12, 08:14 PM

I would have stood there with a straight face and stared with a look that would have pissed her off so bad she would have stroked out. Then I would have laughed.

Most people that are angry and yelling at you are trying to get a rise out of you. They are fully prepared for you to insult them and scream back or become confrontational. It is far more pleasing to not be bothered at all. Simply nod and say, "yeah that sucks but, well... I just cant help you out there." Give them the shrug and your shit out of luck look and they will explode with anger. Just like some one flipping you off, just smile a big ol goofy grin and wave.

We all gonna die when china decides to take us out for our resources, it wont matter then...

**Gumby** · 07-25-12, 01:15 PM

That video made me lol. I am all for being a good steward of our planet, but I am pretty sure that the mining that took place to build her Prius was way worse than him running his truck for a few minutes. Not to mention, I am pretty sure she had a cigarette in her hand so why is she worried about sucking down carbon monoxide? What an ignorant hypocritical bitch.

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**deathgodusmc** · 07-25-12, 07:00 PM

Originally Posted by ElFuriosoGato

A positive feedback loop is fine if your gain is less than unity. Humans would never be able to produce enough H2O vapor to cause a truly unstable water cycle. Also, more evaporation would mean more fresh water for our expanding populace, even if it raised salinity of the ocean (negligibly).

Salt water species are VERY tempermental to salinity. Raising the level is a risk in itself seeing as we get millions of tones of food from the ocean. Plus what goes up does not always come down where its needed. In doing so could actually change the environment all together. Smog is held in by the mountains in cali. What are the risks of water vapor being held in by those same mountains? Could we pontentialy create a tropical environment in cali? In doing so could we wipe out a tropical environment in florida?

With an ever growing population and a never changing water supply we are currently in a drought right now. What are the potential impacts of 500 million cars using water? I would argue humans have already created an unstable water supply.