Climate change: Attributing cause and effect.

The article relates the authors' view on the study by C. Rosenzweig and colleagues about the impact of climate change, published within the issue. They remarks that study is the first to link observed global changes in physical and biological systems to human induced climate change from increasing greenhouse gases. They mentions the study demonstrated that changes in physical and biological systems are pervasive, and that these impacts lie in consistent with warming of the climate system.