Actually, the reports from the IPCC which are summaries and analysis of peer reviewed scientific research from around the world do show evidence - if you take a look at the Fourth Assessment Report - in summary it states that human actions are "very likely" the cause of global warming - with details of the evidence. The term "very likely" means a 90% or greater probability.
This conclusion is backed by pretty much all national and international science acadamies and professional bodies of note. http://en.wikipedia.org/wiki/Scienti...climate_change
The scientific message based on the evidence is that there is climate change happening, and with a 90% probability this is caused by human activity, and the message is we should change the way we are heading to avoid any possible repurcussions - this involves using less energy (be it via turning off the lights or appliances when not needed, using our vehicles less, using more energy efficient products etc), manufacturing in a environmentally friendly way (less pollution etc).
Believe you need to separate the scientific message regarding climate change vs. the commercial marketing messages individual companies may use in marketing their products.
I agree with you that world poverty is also another issue that needs to be looked at as well. It's pretty sobering when you see the facts that the richest 1% of the adult population owns 40% of the world's wealth, the richest 10% own about 85%, and that the poorest 50% only own 1% of the wealth. But it's not just between countries/different regions - this wealth/poverty divide occurs also, within a country, for example, take the US, where 10% own about 70% of the wealth. Even in Singapore, there is a wealth divide (but this is difficult to see as I am not aware of any goverment reports publicly available to show these figures).
Poverty in theory is really easy to tackle. But in practical terms - trying to get the 1% richest or the 10% richest to share their wealth with the 90% poorest is very difficult. Poverty is also difficult to tackle since not everyone is affected by it. All a part of human psychology and how everyone thinks of themselves as individuals separate from everyone else.
Climate change will affect everyone (whether rich or poor) and thus you will hear more about it as it becomes a part of everyone's lives.