Science and the Environment

Crop-dusting pilots are the adrenaline junkies of the agriculture world. They whiz through the air, flying under power lines to sow seeds or spread pesticides on farmers' fields.

It's a dangerous job, and now these pilots are facing a new challenge — short towers that can sprout up in fields overnight. These towers are used to gather data for wind energy companies.

Officials from countries around the word have met for the last two weeks in Lima, Peru to talk global climate change.   At the heart of those talks is how to limit billions of tons of CO2 that are pumped into the atmosphere every year from coal burning power plants.  

But how do we keep track of the CO2 we’re releasing? And just how do we weigh something that floats in the first place? 

It turns out there is a venerable history to the science of weighing smoke.

From StateImpact Texas:

Stanley Rabke’s family has lived and worked on their Hill Country ranch since 1889. Generations of Rabkes have struggled with the extremes of Texas weather, but one storm sticks out in Stanley’s memory: it came after the drought of the 1950s.

“It rained and rained and rained,” he says. “Back then we raised turkeys, we lost thousands of turkeys that washed away in the creek.”

The disaster underscores an irony of life in Texas. “You hope and pray that you’re going to get a good rain, [but] on the other side of it, you hope you don’t get a flood,” says Rabke.

A quick walk from where the turkeys met their fate, some new technology that will help manage that risk is being installed — soil monitoring sensors in the ground.

The clean energy plan put forth by the Environmental Protection Agency aims to combat climate change by reducing the amount of carbon dioxide emitted by power plants.  But it may come at a price, according to a report released Monday by the Electric Reliability Council of Texas, the group that manages much of Texas electric grid.

The report says electricity bills could rise as much as 20 percent because of the carbon reduction goals, adding that the goals could also endanger electric reliability. Part of that is due to the way the plan would change Texas' energy mix.  

“What we found is that the likely impact of the clean power plan is going to be the retirement of a significant portion of the coal-fired capacity in ERCOT," says ERCOT Director of System Planning Warren Lasher.

The goal of the EPA’s clean energy plan is to reduce Texas carbon emissions by 30 percent by 2030.

The FBI and other law enforcement agencies are up in arms about new technology now available from Apple and soon to be released by Google.

The software encrypts the data on smartphones and other mobile devices so that not even the companies themselves will be able to access the information.

For tens of thousands of years, the skeleton of a giant mammoth lay in one place: a gravel pit about 50 miles south of Dallas.

A few months ago, the bones were unearthed — and now they're on the move. Paleontologists are carefully packing them up, preparing them to travel to the Perot Museum of Nature and Science, in Dallas.

A Gravel Pit Reveals Its Secret