Expert Reports

These reports are unique, authoritative expert evaluations. Each report is produced by a committee of experts selected by the Academy to address a particular statement of task and is subject to a rigorous, independent peer review.

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Showing results 1 - 5 of 887

Gene Drives on the Horizon: Advancing Science, Navigating Uncertainty, and Aligning Research with Public Values (2016)

Gene drives are systems of biased inheritance that enhance the ability of a genetic element to pass from an organism to its offspring through sexual reproduction. A wide variety of gene drives occur in nature. Researchers have been studying these natural mechanisms throughout the 20th century but, until the advent of CRISPR/Cas91 for gene editing, have not been able to develop a gene drive. Since early 2015, laboratory scientists hav... More >>

Report in Brief

Lessons Learned from the Fukushima Accident for Improving Safety and Security of U.S. Nuclear Plants: Phase 2 (2016)

The 2011 Fukushima Daiichi nuclear accident should serve as a wake-up call to nuclear plant operators and regulators on the critical importance of measuring, maintaining, and restoring cooling in spent fuel pools during severe accidents and terrorist attacks. This final phase of a 2-part study on lessons learned from the Fukushima Daiichi nuclear accident provides findings and recommendations for improving U.S. nuclear plant security and spen... More >>

Genetically Engineered Crops: Experiences and Prospects (2016)

Since their introduction in the mid-1990s, genetically engineered (GE) crops have been the topic of much debate. This report reviews evidence accumulated from experiences on the most widely grown GE crops to date: herbicide-resistant and insect-resistant varieties of maize, soybean, and cotton. While recognizing the inherent difficulty of detecting subtle or long-term effects on health or the environment, the study committee found n... More >>

Report in Brief

Nutrient Requirements of Beef Cattle: Eighth Revised Edition (2016)

Updating nutrient requirements and recommendations last made in 2000, this report is a comprehensive review of the most recent information available on beef cattle nutrition and ingredient composition for efficient, profitable, and environmentally conscious beef production. In addition to a thorough and current evaluation of the literature on the energy and nutrient requirements of beef in all stages of life, this volume includes information o... More >>

Next Generation Earth System Prediction: Strategies for Subseasonal to Seasonal Forecasts (2016)

Extending weather and ocean forecasts to predict Earth system conditions weeks to months in advance will help decision makers plan ahead to save lives, protect property, and increase economic vitality -- but, currently, the accuracy, skill, and scope of such extended forecasts is limited. This report presents the vision that, in the next decade, subseasonal to seasonal forecasts (those made two weeks to 12 months in advance) will be as widel... More >>

Report in Brief