Recent rates of forest harvest and conversion in North America

Forest carbon in North America: annual storage and emissions from British Columbia’s harvest, 1965–2065

UNLABELLED BACKGROUND The default international accounting rules estimate the carbon emissions from forest products by assuming all harvest is immediately emitted to the atmosphere. This makes it difficult to assess the greenhouse gas (GHG) consequences of different forest management or manufacturing activities that maintain the storage of carbon. The Intergovernmental Panel on Climate Chang...

Control rates of hypertension in North America.

Despite the extensive evidence from epidemiological studies showing that hypertension is a major risk factor for premature cardiovascular morbidity and mortality and from randomized clinical trials showing that this risk can be markedly reduced by antihypertensive drug therapy, hypertension is generally considered to be poorly managed. Surveys performed in the 1990s reported low rates for aware...

Forest health status in North America.

The forests of North America provide a variety of benefits including water, recreation, wildlife habitat, timber, and other forest products. However, they continue to face many biotic and abiotic stressors including fires, native and invasive pests, fragmentation, and air pollution. Forest health specialists have been monitoring the health of forests for many years. This paper highlights some o...

Race and preterm birth rates in North America.

Estimating forest conversion rates with annual forest inventory data

The rate of land-use conversion from forest to nonforest or natural forest to forest plantation is of interest for forest certification purposes and also as part of the process of assessing forest sustainability. Conversion rates can be estimated from remeasured inventory plots in general, but the emphasis here is on annual inventory data. A new estimator is proposed based on analysis of plot-l...