upwelling, definition of

Climate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. It can be a change in the average weather or a change in the distribution of weather events around an average (for example, greater or fewer extreme weather events). Climate change may be limited to a specific region, or may occur across the whole Earth.

In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate. It may be qualified as anthropogenic climate change, more generally known as global warming.

Wikipedia - Climate Change entry

• Global Warming Causes “Deadly Marine Cold Spells”
  "Bait and switch science" says global warming caused a "deadly marine cold spell." Real science says "move along, there's nothing to see here."
• Voices Of CO2 Doom Dishonestly Alarm Unthinking Worshippers with Correlations – While Downplaying Proven Causations
  As a result of their predisposed belief in “demon CO2”, simple correlations are misleadingly promoted as causation by both researchers and click-bait media.
• Fishy temperature proxy
  From the University of British Columbia ‘Fish thermometer’ reveals long-standing, global impact of climate change Climate change has been impacting global fisheries for the past four decades by driving species towards cooler, deeper waters,...