Major newspapers’ top headlines last Friday were consistent and alarming, but not really surprising:

These stories follow the release of a devastating report from the United Nations Intergovernmental Panel on Climate Change (IPCC), which points the environmental finger at the way humans pollute the planet.

The IPCC is composed of the world’s leading scientists and climate experts, and its report was produced by approximately 600 authors from 40 countries, with more than 620 expert reviewers from 113 nations. They have resoundingly concluded that human activities are accelerating global temperatures.

To be released in four comprehensive volumes, the report can be summarized simply: Emissions of carbon dioxide, methane, nitrous oxide and other greenhouse gases have caused most of the global temperature rise observed since the mid-20th century.

“There can be no question that the increase in these greenhouse gases is dominated by human activity,” confirms IPCC Working Group Cochair Susan Soloman, with records from 10,000-year-old ice cores showing a dramatic rise in greenhouse gases from the onset of the industrial era.

The bottom line: “an accelerating transition to a warmer world—an increase of 3°C is expected this century—marked by more extreme temperatures including heat waves, new wind patterns, worsening drought in some regions, heavier precipitation in others, melting glaciers and Arctic ice, and rising global average sea levels.”

“Momentum for action is building,” says Achim Steiner, executive director of the United Nations Environment Programme. “This new report should spur policymakers to get off the fence and put strong and effective policies in place to tackle greenhouse gas emissions.”

Tune in tomorrow for the panel’s specific conclusions.

Note: OrganicAuthority.com publishes science news so organic consumers have access to the latest information on climate change and threats to our environment. You can view more posts on climate change by visiting the Environment Section of our blog.