The message of the approximately 2,000 scientists attending the meeting in Copenhagen on climate change is clear: we are facing the worst predictions ever, we are looking at the worst case scenario happening, and we are heading for irreversible changes.

Years of assessments have revealed that the world is facing changes worse than predicted in the 2007 report issued by the Intergovernmental Panel on Climate Change. This means the average temperature is raising, and so is the sea level.

While there may still be some questioning the alarm signals raised by scientists, we can’t ignore the strong message sent from Copenhagen: if we don’t act quickly, it will be impossible to act efficiently at a later date.

The trends that we’ve been warned about, which were supposed to occur in decades from now, are as current as they get, and they are accelerating.

It will take a common effort from all countries and organizations to draw the best environmental policies, and it’s up to us to stick with them.

Some of us might not be too worried about it, but we should be. If the global average temperature continues to rise, so will the sea levels, which will further affect people living on coastal areas. Furthermore, it will also affect global economy.

Danish Prime Minister Anders Fogh Rasmussen said during the conference that an agreement is needed as soon as this year, since we know for a fact that climate change is occurring now, and it will get worse as time goes by.

The Copenhagen reunion is the precursor of the December international summit on climate change.