Latest News

As the East Coast braces for a tropical storm later this week, research from Penn State and Rutgers universities suggests damaging storm surges have become more common as a result of climate change. Scientists can't pin any single storm on climate change, but they can evaluate long-term trends. In the study, published this week in the journal PNAS, researchers went back more than a millennium, to the year 850, tracking sea level rise and tropical cyclone behavior over time.
Scientists say global warming will be the primary cause of future sea-level rise. After Hurricane Sandy, then-mayor Michael Bloomberg led an unprecedented effort to safeguard the city from the effects of climate change.
Russian scientists have found about 700 “methane holes” in the Arctic shelf. The scale of emissions shows that the permafrost has degraded severely, and researchers think the thawing is irreversible.


Welcome to Climate Change Monitoring

The Climate Change Monitoring Services (CCMS) is taking steps to bring this evidence to the public's attention, with the goal of building support for action to reduce the heat-trapping gas emissions that cause global warming. We have developed - and always updated - a world map, viewable online and also available as an Online Maps, that shows where the fingerprints and harbingers of global warming have occurred in recent years. By showing the local consequences of climate change, it brings the message home effectively.

Frustrated because a friend or colleague says global warming is the future's problem?

Compelling new evidence demonstrates that global warming is already under way with consequences that must be faced today as well as tomorrow. The evidence is of two kinds:

  • Fingerprints of global warming are indicators of the global, long-term warming trend observed in the historical record. They include heat waves, sea-level rise, melting glaciers and warming of the poles.
  • Harbingers are events that foreshadow the impacts likely to become more frequent and widespread with continued warming. They include spreading disease, earlier spring arrival, plant and animal range shifts, coral reef bleaching, downpours, and droughts and fires.

Climate Change events

Weather Clouds

Coral Bleaching



Glacier Melting


Heavy Storm

Methane efflux


Polar Melting

Sea-level Rise