Environment

Did you know carbon comes in blue?

Blue carbon refers to the carbon in oceans and coastal areas. These ecosystems are excellent carbon sinks – they can efficiently absorb and store carbon from the atmosphere.

And with global emissions of carbon dioxide topping 35 billion tons in 2016, carbon sinks are more important than ever.

The Lower Mississippi River Basin’s Delta region lies mainly in Arkansas, Mississippi, and Louisiana. It is a fertile area that produces many crops. The region is warm and humid, with plenty of water. This makes it a potentially important carbon sink, capable of absorbing carbon dioxide from the atmosphere. However, such warm soil and plentiful moisture can also have the opposite effect. Carbon dioxide is released from decaying plants and organic matter in the soil.

Manure is a reality in raising farm animals. Manure can be a useful fertilizer, returning valued nitrogen, phosphorus, and potassium to the soil for plant growth. But manure has problems. Odor offensiveness, gas emissions, nutrient runoff, and possible water pollution are just a few.

Are you a farmer who wants to keep better track of the climate conditions around you? There’s an app for that.

Camelina: Have you heard of it? It’s an emerging alternative oilseed crop in parts of the Great Plains.

A new study looks at how three varieties of camelina perform when grown in two different regions within the Great Plains.

The end goal is to find the camelina variety that performs best in each location or environment. Augustine Obour at Kansas State University was the lead author of the paper.

Studying the effects of great cormorant droppings on water reservoirs is a dirty job, but someone’s got to do it.

Huckleberry Finn wouldn’t recognize today’s lower Mississippi River. Massive walls separate the river from low-lying lands along the bank, an area called the floodplain. Floodplains were once the spillover zone for the river. As people settled in floodplains, the land was converted into farms, homes, and businesses. Close to 1,700 miles of walls, or levees, keep the lower Mississippi River in check.

Green thumbs, do not fret. Pockets of soil in urban areas are still available for the increasingly popular practice of urban gardening.

And while the proximity of these soils to pollution and industry can increase levels of contamination by harmful compounds, some scientists have found that the risks associated with gardening in these soils may not be as high as first thought.

A new approach to wastewater treatment may be key in efforts to reduce, reuse, and recycle. Moreover, it can be profitable.

Less than a mile from the edge of the bustling Penn State University campus lies 600 acres of cropland and forests crisscrossed with irrigation pipes. The water being pumped out of these pipes isn’t channeled from a river or a well. Instead, over 500 million gallons of treated wastewater from the campus is discharged at this site every year.