Anthropogenic imprint of seasonal cycle changes in tropospheric temperature.

PCMDI has led research into the detection of significant changes in Earth’s climate, and into the attribution of these changes to specific causes. We are best known for pattern-based “fingerprint” studies, which have contributed to findings of a “discernible human influence on global climate”. This work has considered a wide-range of changes to the global climate system and included analyses of atmospheric temperature, precipitable water, ocean heat content, and key aspects of the hydroclimate.