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New Model For Assessing The State Of The Environment

The Swedish EPA has developed a new model for assessing the state of the environment, making it easier to compare local and regional areas. The model criteria cover six areas: forest landscape, agricultural landscape, groundwater, lakes and watercourses, coasts and seas, and contaminated sites.

SourceSwedish Environmental Protection Agency·DateJan 20, 1999

Water Travels Chaotically Through The Ground

Researchers at Idaho National Laboratory have discovered that water flows chaotically through the ground in heterogeneous soils and fractured rock environments. Chaos theory can now be used to model this non-linear process, which is crucial for environmental restoration.

SourceDOE/Idaho National Laboratory·DateDec 17, 1998
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New Research Places Mars Bulk Composition In Question

Recent analysis of Mars data from the Mars Pathfinder Mission suggests that the C1 carbonaceous chondrite standard is incorrect, with Mars exhibiting a distinct elemental composition. This contradicts previous assumptions about the terrestrial planets' formation and density variations.

SourceCarnegie Institution for Science·JournalScience·DateSep 17, 1998

What We Expect Is Often What We See

Researchers found that high-level expectations influence visual perception, overriding depth information in objects. This challenges the idea of veridical reflections of reality in the brain.

SourceMax-Planck-Gesellschaft·JournalNature Neuroscience·DateJul 2, 1998

Models Assess Remedial Actions On Abandoned Mine Lands In Colorado

The USGS is developing simulation models to evaluate the effects of proposed remedial actions on stream chemistry in abandoned mine lands. These models are applied to St. Kevin Gulch, a small stream near Leadville, Colorado, providing estimates of water quality that reflect the impact of proposed actions.

SourceU.S. Geological Survey·DateMay 26, 1998