Blog | July 16, 2013

By Peter Gleick, President

July 16, 2013

The evidence from real-world observations, sophisticated computer models, and research in hundreds of different fields continues to pile up: human-caused climate change is already occurring and will continue to get worse and worse as greenhouse-gas concentrations continue to rise.

Because the climate is connected to every major geophysical, chemical, and biological system on the planet, it should not be surprising that we are learning more and more about the potential implications of these changes for a remarkably wide range of things. And while it is certainly possible – even likely – that climate changes may positively affect some things (like modestly reducing heating bills in colder regions), the planet’s ecosystems and human-built systems have evolved and been built around yesterday’s climatic conditions, not tomorrow’s. Overall, the evidence suggests the bad consequences will greatly – perhaps massively – outweigh the good.

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