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Natural chromium sources threaten California groundwater
A study shows natural sources of hexavalent chromium are affecting more people and wells in California than industrial sources. But groundwater pumping may accelerate release of this carcinogen.
Strawberry fields forever? Baja turning to seawater to grow lucrative crop
In an arid region south of Tijuana, strawberries grown for export have become so valuable, farmers keep trying to grow more, and are allowed to use more groundwater than nature replenishes.
Overuse of fertilizers and pesticides in China linked to farm size
A new study finds chemicals are often used inefficiently on small farms in China. Land and migration policies may help explain why the country uses 30 percent of the world's fertilizers and pesticides on 9 percent of global cropland.
Warmer climate will dramatically increase the volatility of global corn crops
A new study co-authored by Earth System Science professor Rosamond Naylor looks at what climate change will mean for global yields of corn, or maize, the most widely grown crop in the world. The study shows dramatic increases in the variability of annual corn yields, which could lead to price hikes and global shortages.
Arsenic unlocked: Overpumping may up contamination risk
Pumping an aquifer to the last drop squeezes out more than water. A new study suggests it can also unlock dangerous arsenic from buried clays. Sinking land may provide an early warning and measure of contamination.
Getting to Zero Deforestation
A synthesis paper led by Eric Lambin reveals the strengths and weaknesses of corporate environmental pledges, and prescribes solutions to boost effectiveness.
Grocery store program improves farmers’ adoption of environmental practices
In one of the first analyses of a company-led sustainability program in the food and agriculture space, Stanford researchers found a major grocery chain fostered increased adoption of environmental practices at the farm level.
Disrupting sensitive soils
Global warming and land use practices, such as farming, could change the environment for microbes living in the soil and alter the amount of greenhouse gases they release into the atmosphere.
21st-century Earth science is computer intensive and data driven
If asked to imagine a geologist, you might envision a tanned and dusty figure, hardy and weathered like the ancient rocks that he or she spends days studying out “in the field."
Soil holds potential to slow global warming
The land under our feet and the plant matter it contains could offset a significant amount of carbon emissions if managed properly.
Paying Farmers Not to Cut Down Trees in Uganda Helps Fight Climate Change
A new study demonstrates a cost-effective strategy to combat climate change by paying farmers in Uganda to conserve and plant trees.
Exploring risks of deforestation as agriculture expands in Africa
Multinational companies are increasingly looking to Africa to expand production of in-demand commodity crops such as soy and oil palm. A first-of-its-kind study highlights the real and potential impacts on the continent’s valuable tropical forests.
Mapping the Corn Belt with satellites
Research by Stanford Earth's David Lobell and George Azzari shows how better mapping of farm fields with satellites can lead to new ways to measure and boost crop yields.
U.S. grasslands affected more by atmospheric dryness than precipitation
According to 33 years of remote sensing data, productivity of U.S. grasslands is more sensitive to dryness of the atmosphere than precipitation, important information for understanding how ecosystems will respond to climate change.
Stanford researchers measure African farm yields using high-resolution satellites
By using high-res images taken by the latest generation of compact satellites, Stanford scientists have developed a new capability for estimating crop yields from space. Measuring yields could improve productivity and eventually reduce hunger.
How China is poised for marine fisheries reform
China has introduced an unprecedented policy platform for stewarding its fisheries and other marine resources.
Study tracks “memory” of soil moisture
First year of data from SMAP satellite provides new insights for weather, agriculture, and climate.
Methane from food production could be wildcard in combating climate change
Reports co-authored by Stanford Earth scientist show concentrations of methane approaching an internationally recognized worst-case scenario and highlight opportunities for reducing greenhouse gas emissions from agriculture and fossil fuel use.
Syrian crisis altered region’s land and water resources
Using remote sensing tools to uncover the environmental impacts of war, researchers introduce novel approaches for hard-to-reach areas.