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You are SO out to lunch bra, get your facts straight. You talk about cattle and the release of methane into the atmosphere, and say that alone accounts for more damage than all of the actions of humankind and their use and misuse of technology over the course of history? Wow is all I can say to that.
Then, you drop a 'fact' about urban heat islands, and how the earth isn't actually getting warmer? You didn't stop to think that scientists around the world wouldn't have taken urban heat islands into account when discussing increases in fucking recorded average temperatures globally? And quickly, tell me what the temperature rising in Manhattan due to the albedo of the pavement and skyscrapers has to do with the fucking ice caps breaking off into the ocean there, wise guy? Last time I checked, Antarctica is FAR from urban, and it's where global climate change is more noticeable than nearly anywhere else in the world.
You're right about one thing, that not everywhere in the world is experiencing increases in average temperatures... but that has to do with microclimates, as a result of global climate change and the world becoming, on average, warmer. It all comes back to that, and people like yourself who choose to be willingly ignorant of what is happening around you make me sick.
On another tangent, we feed a great deal of the worlds usable grain to cows. If more people stopped eating meat, there would be more grain to go around. That would not solve the distribution problems, but would increase supply.
Being kind to the environment is not hard. Things such as turning off unnecessary lights or recycling are easy to do.
However, the main problems that face our society are that these simple concepts are not carried out on a massive scale, a scale large enough to make a serious positive impact. Another huge problem is the reliance on gasoline. The biggest obstacle to change in this case is the massive petroleum and auto industries, who are certainly against changing the planet's fuel source.
The real bottom line in all big changes is money. When Americans and people all over the globe are hit hard by gas prices, around $5 a gallon, then people will start to want alternatives. The funding for alternative energy research is miniscule compared to the millions wasted on gasolene every day. When a clean alternative exists, we can move away from gas.