How successful will international efforts (such as the Kyoto Protocol) to half climate change be?

How successful will international efforts (such as the Kyoto Protocol) to halt climate change be? What alternatives are there? Give examples.

The fact that global warming and climate changes are occurring and both of them are affecting human existence on Earth is certainly well known. The evidence about them is becoming stronger and the question ‘what can we do to avoid this disaster which is approaching to destroy our planet? , is very controversial. What consequences can happen if society would not start to act quickly? Who is really responsible for the process? At the same time some people are arguing that global warming is a myth. Sceptics say that the changing of the planet’s temperature is natural and has been gradually rising since the beginning. Is it just a natural process which may not be caused by human activity?