<style face="normal" font="default" size="100%">Environmental challenges in the Twenty-First Century and our respect for nature. 2003 Blue Planet Prize Commemorative Lecture</style>

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<style face="normal" font="default" size="100%">Environmental challenges in the Twenty-First Century and our respect for nature. 2003 Blue Planet Prize Commemorative Lecture</style>

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<style face="normal" font="default" size="100%">Biogeochemistry of a Forested Ecosystem</style>

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<style face="normal" font="default" size="100%">Corrections to allometric equations and plant tissue chemistry for Hubbard Brook Experimental Forest</style>

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<style face="normal" font="default" size="100%">Dry deposition of sulfur: a 23-year record for the Hubbard Brook Forest ecosystem</style>

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<style face="normal" font="default" size="100%">The ecosystem approach to forest hydrological research</style>

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<style face="normal" font="default" size="100%">Changes in the chemistry of surface waters: 25-year results at the Hubbard Brook Experimental Forest, New Hampshire</style>

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<style face="normal" font="default" size="100%">Reply to C. W. Chen and L. E. Gomez</style>

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<style face="normal" font="default" size="100%">Reply to G. R. Holdren and M. R. Church</style>

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<style face="normal" font="default" size="100%">Reply to P. J. Dillon</style>

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<style face="normal" font="default" size="100%">Chemical concentrations in cloud water from four sites in the eastern United States</style>

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<style face="normal" font="default" size="100%">Cloudwater chemistry from ten sites in North America</style>

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<style face="normal" font="default" size="100%">Changing perspectives on air-pollution stress</style>

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<style face="normal" font="default" size="100%">Comment on "Regional Tree Growth Reductions due to Ambient Ozone: Evidence from Field Experiments."</style>

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<style face="normal" font="default" size="100%">Decrease in precipitation acidity resulting from decreased SO42- concentration</style>

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<style face="normal" font="default" size="100%">The Hubbard Brook sandbox experiment</style>

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<style face="normal" font="default" size="100%">The northern hardwood forest ecosystem: ten years of recovery from clearcutting</style>

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<style face="normal" font="default" size="100%">Clearcutting affects stream chemistry in the White Mountains of New Hampshire</style>

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<style face="normal" font="default" size="100%">Clearcutting northern hardwoods: effects on hydrologic and nutrient ion budgets</style>

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<style face="normal" font="default" size="100%">Effects of ambient ozone on the productivity of Populus tremuloides Michx. grown under field conditions</style>

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<style face="normal" font="default" size="100%">A regional acidic cloud/fog water event in the eastern United States</style>

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<style face="normal" font="default" size="100%">Regional tree growth reductions due to ambient ozone: evidence from field experiments</style>

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<style face="normal" font="default" size="100%">Air and watershed management and the aquatic ecosystem</style>

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<style face="normal" font="default" size="100%">Catastrophic disturbance and regional land use</style>

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<style face="normal" font="default" size="100%">An ecosystem approach</style>

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<style face="normal" font="default" size="100%">The Hubbard Brook Valley</style>

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<style face="normal" font="default" size="100%">Long-term trends in precipitation chemistry at Hubbard Brook, New Hampshire</style>

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<style face="normal" font="default" size="100%">A meteorological analysis of the precipitation chemistry event samples at Hubbard Brook, New Hampshire</style>