These cycles are clearly the primary drivers of climate change on the scale of roughly 100,000 years, 40,000 years and 20,000 years. (masterresource.org)
Global climate is a good example — not today's global warming episode, but long - term climate changes on the scale of many millions of years. (realclimate.org)
The European experience is that without tight caps on emissions, the carbon price remains far too low to stimulate change on the scale scientists calculate is necessary. (bbc.co.uk)