The evidence that global climate change is real and accelerating received a boost last week with publication of a new study that shows world temperatures are warmer than at any time in at least 4,000 years.
More alarming still, the findings suggest that warming will continue and temperatures are likely to surpass levels not seen on the planet since the beginning of the last ice age. Naysayers will question the data and continue their hunt for flaws in the methodology, but the conclusions are nearly inescapable.
The earth's climate is changing, and we must take action now to try to halt the process — if it is not already too late.