So you know all of that ‘uncertainty’ that supposedly exists among the scientific community regarding climate change? Well, not only did it not exist five years ago, but now it really doesn’t exist.

The United Nations Intergovernmental Panel on Climate Change released its Fourth Report today, which says humans are “very likely” the cause for global warming, indicating a 90% certainty among scientists.

The report also said even if we did take drastic measures to curb our greenhouse gas production, rising temperatures and sea levels would still “continue for centuries.”

By 2100, the increase in temperature will be about three to nearly-eight times what the increase was from 1901 to 2005, and a conservative sea-rise estimate would displace over ten million people worldwide.

More reports are scheduled for release later in the year, which will deal with possible solutions and approaches to dealing with our impending doom. Good times.

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by Casey Schreiner

Founder and Editor of Modern Hiker, Author of "Day Hiking Los Angeles." "Discovering Griffith Park," and "Cloud Spotting." Walking Meditator, Native Plant Enthusiast.