Statement on Climate Change

The Earth’s average surface temperature has increased by more than 0.8°C over the past 100 years, with much of this increase taking place over the last 35 years.

It is stated that human activity had much to do with this and that if we continue as we are much greater temperature increases can be expected in the future. Is this correct and, if so, should we be concerned about it?

Nuclear Waste – Is It Still A Problem?
Reducing Our Transport CO2 Emissions