@EmperorNero,
It's important to keep in mind that there's a big difference between climate change, and the weather. Picking out articles on this year's unseasonably warm summer someplace, or on some very cold winter somewhere else, does nothing to support or refute global warming. The weather changes frequently, but climate change is a very gradual process. For an example, the latest 'ice age', during the Pleistocene epoch, has lasted for well over 2 million years. At the start of the epoch, modern humans did not exist, and by the end, we did. Yet, in geological and climate terms, it was just a moment in time, only a couple million out of the billions of years the planet has been around, where earth was marked by a specific type of climate, and regular glacial movements.
The scientific data certainly seems to show that climate change is occurring, and that this gradual warming is taking place. However, we can't be sure that it's "unnatural", as we know that the earth has gone through periods of warming and cooling, long before humans were making any significant contribution to carbon levels in the atmosphere. Anyway, humans are a part of nature, and if we are in fact causing the warming, it is still 'natural', though natural is not always a good thing.
What is known is that there is a direct correlation between carbon levels and warming, over time, but this is not a clearly discernible causal relationship where carbon emissions necessarily lead to warming. In fact, it can be the reverse, as when the earth warms up, this naturally leads to higher carbon levels in the atmosphere due to release from the oceans.
Global warming is happening, but it's still unclear whether or not humans are a significant cause behind it. No need to jump the gun, or make fallacious arguments where correlation is supposed to prove causation. However, most experts do agree that it is likely that our activity is making a significant impact, and it will only continue to get worse if nothing is done. The ecosystem can be thrown out of balance, and it's pretty clear that all of our emissions have already begun to do this, whether through warming, or other mechanisms, like simple pollution. It's something that is a concern.
I am concerned with protecting the earth, but I'm also wary of some of these causes that are simply pushed for the sake of making money and political outcomes. An extra carbon tax is just another way for big brother to stick his hand in our pockets and take the money we've earned...we already tax energy, and the people who consume more than their fair share end up paying for it. With cheap energy becoming more scarce, and demand for it always on the rise, prices will inevitably cause us to keep cutting back on consumption as they already have.
A general concern for the environment though, I do not think can be a bad thing. And it can also be helped by a self-interested concern, where people use less energy because they don't want to spend money. What Malthus wrote of the dangers of population growth might basically be true for the corresponding dangers of growth in consumption; there will inevitably be some type of check that comes into place in this type of system that is unsustainable. The main problem though is not population growth, but per capita growth in consumption, where people adopt increasingly exorbitant lifestyles that are, imo, unnecessary and vapid.
Individual lifestyles can be changed, and we can grow out of our current consumption-based culture, if enough people want to. Things like earth day might help, and they might not, but the real problem I think you should be addressing is just, in general, how positive social movements are spun in the media in order to serve businessmen and politicians. This is done with all sorts of issues, not just earth day.
I just traded in my pickup that got around 12mpg for a small european sports car that averages over 25mpg. This not only cuts my fuel costs in half, but also my car-related carbon emissions. It helps the environment, and it helps myself, so it's a great thing. If more people adopt this type of viewpoint, I don't see the harm.