TABLE 2.2 Unresolved Issues and New Opportunities for Geoengineering

NATIONAL NEEDa

2004 STATUS AND CRITICAL ISSUES

UNRESOLVED ISSUES AND NEW OPPORTUNITIES

Waste Management and Environmental Protection

Status: Many new technologies have been implemented and more are under development. Risk-based corrective action and monitored natural attenuation have provided significant savings in many cases.

 

  • Significant global environmental problems

  • Formal adoption of the observational method (adaptive management) for site remediation projects

  • Bioengineering methods for in situ remediation and containment barriers

  • Long-term stewardship of waste landfills and contaminated sites

  • Consideration of wastes as “resources out of place”

  • “Cradle to cradle” management of wastes

  • Strategies and technologies for alternatives to landfilling

  • Carbon sequestration

  • Remediation of contaminated sediments

  • Regional databases and data models for environmental data

  • Advanced sensors and remote sensing

  • Urban surface water management; erosion and sediment control

Critical Issues: Many challenging sites still need to be remediated. Additional technological development is still needed, including development of appropriate waste containment and remediation technology for developing countries and technology for reduction, reuse, and recycling of waste materials. Cleanup, restoration, and protection of wetlands, rivers, harbors, and other waterways has become an important consideration.



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