"Alaska is melting. Greenland is melting."
What's your point kickingbird?
Here's a fact: if all the ice in the North (I'm talking about parts in and above Canada) melts, the water wouldn't reach 42nd latitude (i.e. wouldn't come close to Toronto). But for all that to happen in the near (or even 100 years), you would need the Sun much closer to Earth, and global warming rates need to increase logarithmically for decades.
Technology contributes to the pollution, but without technology, Earth would be able to barely support 2 billion people ... now think of the effects if suddenly bans on major technologies were to happen (unlikely and highly improbable).
The problem isn't with the technologies contributing to the environmental health, but it's with the amount of people who are contributing. The first step in trying to control the situation would be to try and control the population growth. Thailand is succeeding at this, and China will start showing improvements soon, but places like India are the ones to watch out for. India's government doesn't produce accurate figures on their population and some scientists have made estimations that India's population has exceeded China's. Now imagine if that goes uncontrolled and the population doubles in the next 20 years instead of 50 (which is the approximate estimate - in about 52 years, Earth will have over 12 billion people).
It's a great dillema. If you ban technology contributing to the pollution, billions of people will starve to death, but if you allow technology to exist freely amongst all, the large population will pollute the Earth to toxic levels. So the question arises, when is destruction of the planet better, sooner or later? Many factors have to be factored into such a question - possibility of a major war, nuclear attacks, and space exploration. In reality, Earth has enough resources at the moment RIGHT NOW to support EVERY single person on Earth, but the differences in allocation of resources makes it impossible. The way that North Americans and Europeans use up natural resources, we would need 3 planet Earths to support the current populace. Hence, if the scientific world finds ways of inhabiting new planets and methods of populating them (e.g. problems of mass people transport - "jumbo-shuttles") the problems will be solved for the most part.