U.S. Agriculture and Forestry Greenhouse Gas Inventory: 1990-2008
May 31, 2011
The U.S. Agriculture and Forestry Greenhouse Gas Inventory: 1990-2008 (USDA GHG Inventory) is a comprehensive assessment of greenhouse gas emissions and sinks in U.S. agriculture and forests. The USDA GHG Inventory provides extensive, in-depth emissions and sinks estimates for livestock, cropland, and forests as well as energy consumption in livestock and cropland agriculture.
Over 360 authors from 45 countries contributed to this comprehensive appraisal of the Earth’s climate. Observations from pole-to-pole show climate patterns such as La Niña and El Niño contributed to some climate events this year. Trends consistent with manmade climate change over the last 50 years are also continuing. These include warming temperatures, melting glaciers and saltier seas, which are related to rising atmospheric greenhouse gas concentrations.
This is the most recent assessment of ozone depletion. Produced by the WMO and UNEP every four years since 1985, the assessment is the work of over 300 scientists including some from NOAA. The 2010 report highlights advances in the understanding of the role greenhouse gases play in ozone alteration. It also includes updated information for policymakers including ozone projections for the 21st century.
A collection of historical maps and air photos, modern vertical and oblique air photos, and maps depicting rates of shoreline change spaced every 20 meters on the sandy beaches of Maui, Oahu, and Kauai.
Greenhouse gas emissions and increased global temperature will change weather, climate, ecosystems, and food supply. Each degree Celsius (1.8 deg Fahrenheit) increase in global average temperature (up to 4 deg C) would likely result in the following: 5% to 10% less total rain in southwest North America, the Mediterranean, and southern Africa; 5% to 10% less streamflow in some river basins; 5% to 15% lower yields of some crops. The document clarifies short- and long-term consequences of various scenarios.
Agreements to limit emissions of greenhouse gases are currently the focus of international negotiations, and with such accords will come the need to accurately estimate these emissions, monitor their changes over time, and verify them with independent data. This report identifies strategic investments that could be made within 5 years to both improve self-reporting and yield a capability to verify these estimates and reduce uncertainties about emissions to less than 10 percent.
Global Climate Change Impacts in the U.S. (Agriculture)
June 16, 2009
A chapter from the 2009 U.S. Global Change Research Program (USGCRP) report, titled Global Climate Change Impacts in the United States, focused specifically on the intersections of climate and agriculture.
Atmospheric Aerosol Properties and Climate Impacts
January 15, 2009
A detailed look at global distributions and properties of airborne particles known as "aerosols." The report examines the various ways in which aerosols influence climate, and the uncertainties in our ability to observe and measure these particles' impact on the climate system.
Past Climate Variability and Change in the Arctic and at High Latitudes
January 1, 2009
Over the past 30 years, average temperatures in the Arctic have increased at almost twice the rate of the planet as a whole. Such temperature changes have been accompanied by shrinking sea ice, melting ice and permafrost on land, and widespread impacts to land and ocean ecosystems.
Decision-Support Experiments and Evaluations Using Seasonal-to-Interannual Forecasts and Observational Data: A Focus on Water Resources
November 12, 2008
An evaluation of decision support experiments that have used seasonal-to-interannual climate forecasts and observational data. Earth's climate varies naturally and also changes in response to human activity. Our ability to adapt and respond to climate depends on our understanding of the system and how to incorporate this understanding into resource management decisions.