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Comment Re:Some shops already have (Score 4, Insightful) 753

Why not? I was on a Delta flight the other day and the only way to purchase in-flight cocktails was via credit card. On another flight the same day, the same purchase could only be made in cash. I am not aware of any laws that require businesses to accept a certain form of payment, and why should there be? If a business doesn't accept cash (or credit cards, or chickens, or bitcoin) and their customers prefer that method of payment, it will show up in their bottom line. Why would the government need to intervene in such a transaction?

Comment Re:So SSL is nothing more than an honor system? (Score 5, Insightful) 107

Everything is nothing more than an honor system. You trust the operating system to accept only the password you chose when someone tries to log in to your account. You trust the compiler not to secretly install backdoors into software. You trust the hardware manufacturers not to implement secret knocks to allow backdoor access. You trust your browser to handle SSL certificates appropriately. If you don't like it, you can build your own hardware and software from scratch and feel safe in the knowledge that it's secure. That is, if you trust that you didn't make a mistake.

Comment Re:"...technological paths available..." (Score 1) 389

I don't think they have agreed it's the most cost-effective solution. I think the bottom line is that they agree that the effects of a warming of 2 degrees Celsius are so bad that we should try hard to avert it. We don't have the technology to remove enough carbon dioxide from the atmosphere to meet that goal, so the only option is to reduce emissions. Now, if you have a better idea, please speak up!

Comment Re:Plant Trees (Score 1) 389

We're putting 30 billion tons of carbon dioxide into the atmosphere each year. At that rate, every person on Earth would be responsible for creating nearly 5 tons of tree each year to eat up all that carbon dioxide. I don't think there's enough space on land for that, even if everyone could plant trees that fast.

Comment Re:I live in Montana. I'm looking forward to it. (Score 2) 389

"They" didn't change "it". Global warming means exactly what it sounds like it means: the Earth is getting warmer on average. Climate change means all of the associated changes in the climate that go along with increased temperatures, such as increased drought in areas that are prone to drought. And you're right that global warming doesn't mean that it will get warmer everywhere, because at first some places will become cooler. However, as global warming progresses, it will eventually be hotter on each place on Earth than it was in the early 1900s.

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