Since the mid-1980s, our understanding of nutrient limitation of oceanic primary production
has radically changed. Mesoscale iron addition experiments (FeAXs) have unequivocally …

This review, with reference to the mouse, rabbit, cow, sheep, pig and man, includes
consideration of (1) the timing of the switch from maternal to embryonic genetic control of …

Background Patients with longstanding ulcerative colitis and colonic Crohn's disease have
an increased risk of colorectal cancer compared with the general population. This review …

Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their
redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate …

Accurate assessment of anthropogenic carbon dioxide (CO 2) emissions and their
redistribution among the atmosphere, ocean, and terrestrial biosphere–the global carbon …

The idea that iron might limit phytoplankton growth in large regions of the ocean has been
tested by enriching an area of 64 km2 in the open equatorial Pacific Ocean with iron. This …

Abstract Changes in iron supply to oceanic plankton are thought to have a significant effect
on concentrations of atmospheric carbon dioxide by altering rates of carbon sequestration, a …

Measurements of air‐sea gas exchange rates are reported from two deliberate tracer
experiments in the southern North Sea during February 1992 and 1993. A conservative …

THE distributions of heat, salt and trace substances in the ocean thermocline depend on
mixing along and across surfaces of equal density (isopycnal and diapycnal mixing …

Ecosystem processes are important determinants of the biogeochemistry of the ocean, and
they can be profoundly affected by changes in climate. Ocean models currently express …