Earthdata (NASA)NASA's Earth Science Data Systems (ESDS) Program. Seeks "to maximize the scientific return from NASA's missions and experiments for research and applied scientists, decision makers, and society at large."
ResearchgateA professional network for scientists and researchers to share, discover, and discuss research.
U.S. Geological Survey (USGS) HomeProvides updated, reliable, non-biased information about land use, climate change trends, ecosystem health, natural hazards, and other geological topics.
Intergovernmental Panel on Climate Change (IPCC)IPCC has been established assess scientific, technical and socio- economic information relevant for the understanding of climate change, its potential impacts and options for adaptation and mitigation.
U.S. Department of Agriculture (USDA)Provides leadership on food, agriculture, natural resources, rural development, nutrition and related issues based on public policy, best available science and effective management.