The origin of the late pre-industrial Holocene (LPIH) increase in atmospheric methane concentrations has been much debated. Hypotheses invoking changes in solely anthropogenic sources or solely natural sources have been proposed to explain the increase in concentrations. Here two high-resolution, high-precision ice core methane concentration records from Greenland and Antarctica...
Full Text:
.) Analytical Methods
1.1) Sample measurement
Air was extracted from ice core samples using a wet extraction
Alaska fishing charter service owners are seeking an increased share of halibut fish resources be reserved for the recreational guided angler sector. An organization representing the owners who fish in the International Pacific Halibut Commission Regulatory Area 2C (southeast Alaska) and Area 3A (southcentral Alaska) titled the Catch Accountability through...
Full Text:
Economic Implications of a Strategy to Purchase Alaska Halibut
Fishery Commercial Fishing Sector Quota
Provides information about complexity of watersheds. Outlines ways to form partnerships, to develop strategies for enhancing watershed resources, and to implement enhancement projects.
Full Text:
, Erosion, and Conservation • 1
p
Soil conditions, and the connections among soils
throughout a watershed