All (mostly) true. I don't think any sensible person could deny that we need to be finding better alternatives to fossil fuels as soon as as possible.
There is, however, room for some disagreement on exactly how large and how urgent the problem is. If the only problems are as you suggest, then we can pretty much afford to sit back and let research progress as normal, safe in the knowledge that market forces and the natural advancement of technology will mean that renewable CO2-neutral energy sources will become economical in the coming decades.
On the other hand if, as some of the more alarmist global warming advocates would have us believe, a few more years of current CO2 emissions will suddenly put us over some kind of tipping point causing the melting of Antarctica, the stopping of the gulf stream, a neverending drought and the end of all life on Earth (and I'm only exaggerating their predictions slightly) then we'd need to take more severe actions -- like severely cutting energy consumption right now instead of waiting to develop better energy sources.
Right now we have all sorts of people using scenarios on the Al Gore doomsday end of the scale in order to justify policies such as cap-and-trade and carbon taxes. In the end these sorts of policies, as well as causing hardship to everybody, might wind up being counterproductive, since they'd slow down the economy and hold up the development of the alternative energy sources which are the real long-term solution.
It doesn't help that most of the people who are pushing for, say, increasing taxes on CO2 are exactly the same sort of people who are always calling for increasing taxes on something.
Like I've been saying for years, global warming is a technological problem, and we should always beware of people trying to push sociological solutions to technological problems.