Few places are as well suited for large-scale solar projects as California’s Mojave Desert. But as mainstream environmental organizations push plans to turn the desert into a center for renewable energy, some green groups — concerned about spoiling this iconic Western landscape — are standing up to oppose them.

Twenty years ago when an epic clash over the logging of ancient redwood forests roiled California, the battle lines were clear-cut.

On one side stood a Texas corporate raider who acquired the Pacific Lumber Co. in a junk bond-fueled takeover and began felling vast swaths of primeval redwoods to pay off the debt. On the other side was Earth First! and other grass-roots greens who staged a campaign of civil disobedience to disrupt the logging. And while mainstream environmental groups may have looked askance at such tactics, they supported the cause in the courts, suing to stop the clear-cutting of ancient trees.

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The U.S. Environmental Protection Agency recently proposed new ozone standards to protect health and environmental values. These standards will apply to the lower atmosphere, to the air we breathe. In the upper atmosphere, ozone is good.

The “hole” in the ozone layer over Antarctica has worried scientists for years since ozone in the upper atmosphere protects the Earth from harmful ultraviolet radiation from the Sun.

According to research at the University of Leeds, the hole in the ozone layer is now steadily closing. This is a concern, since its repair could actually increase warming in the southern hemisphere, the scientists at Leeds conclude.

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