Global warming refers to the global increase of temperature on Earth in the last two centuries.
In the last 200,000 years, Earth has gone through alternating long cold periods and short warm periods. The latter are called ‘interglacial periods’. The main factor which has been responsible for the long-term fluctuations between glacial and interglacial ages seems to be the inclination of Earth's axis.
Observations have shown that, on a smaller time scale, there exists an unequivocal and continuing rise in the average temperature of Earth's climate system. The majority of the scientific community agrees that human activities are the main cause for the recent warming. In particular, the International Panel on Climate Change (IPCC) has reported that scientists are more than 90% certain that most of global warming was being caused by increasing concentrations of greenhouse gases produced by human activities .
Human behavioural transformation towards more sustainable lifestyle management would mitigate the alarming trend in global warming. The first strategy has to be to develop collective awareness of the problem, in order to achieve a global behavioural change.
The SciCafe 2.0 platform, Citizens’ Say, constitutes a framework for developing and disseminating knowledge on societal problems, through open dialogue and information exchange among citizens and researchers.
 Intergovernmental Panel on Climate Change (IPCC) Synthesis Report AR4 SYR 2007.