Por segundo año consecutivo, los niveles de dióxido de carbono en la atmósfera han aumentado a un ritmo récord, saltando 3 partes por millón (ppm) en 2016, según datos de la Administración Nacional Oceánica y Atmosférica. Las concentraciones de CO2 aumentaron 3.03 ppm en 2015, convirtiendo los dos últimos años en la primera vez que el gas de efecto invernadero aumentó más de 3 ppm en los 59 años de monitoreo de NOAA, informó la oficina Climate Central.
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Study quantifies role of legacy phosphorus in reduced water quality
For decades, phosphorous has accumulated in Wisconsin soils. Though farmers have taken steps to reduce the quantity of the agricultural nutrient applied to and running off their fields, a new study from the University of Wisconsin–Madison reveals that a “legacy” of abundant soil phosphorus in the Yahara watershed of Southern Wisconsin has a large, direct and long-lasting impact on water quality.
Louisiana wetlands struggling with sea-level rise four times the global average
Without major efforts to rebuild Louisiana’s wetlands, particularly in the westernmost part of the state, there is little chance that the coast will be able to withstand the accelerating rate of sea-level rise, a new Tulane University study concludes.
The study by researchers in Tulane’s Department of Earth and Environmental Sciences and published in the open-access journal Nature Communications shows that the rate of sea-level rise in the region over the past six to 10 years amounts to half an inch per year on average.
Increase of Alaskan Snow Geese OK for Other Species
A new report by the USGS finds that although snow geese are increasing rapidly in northern Alaska, they are not having a negative effect on black brant. Brant are a goose species that shares its nesting habitat with snow geese.
Increase in Extreme Sea Levels Could Endanger European Coastal Communities
Massive coastal flooding in northern Europe that now occurs once every century could happen every year if greenhouse gas emissions continue to rise, according to a new study.
New projections considering changes in sea level rise, tides, waves and storm surge over the 21st century find global warming could cause extreme sea levels to increase significantly along Europe’s coasts by 2100. Extreme sea levels are the maximum levels of the sea that occur during a major storm and produce massive flooding.
What makes farmers try new practices?
Change is never easy. But when it comes to adopting new agricultural practices, some farmers are easier to convince than others.