Bat swarms tracked by weather Radar Reveal Earlier Migration as Planet Warms

When millions of migrating bats fly toward their breeding cave near San Antonio, Texas, each spring, the shadowy, swirling swarm is so dense, it shows up on weather radar. Scientists reviewed years of that radar data and found that the flying mammals are arriving about two weeks earlier than they did just two decades ago.

Millions of Brazilian free-tailed bats spend summers in the
Bracken Cave near San Antonio, Texas. A study finds
they're arriving earlier and staying longer as the planet warms.

The scientists suspect the changes in the bats' timing and seasonal cycles are linked with the way global warming is altering the food chain and weather patterns.

Spring is warming faster than other seasons in many parts of the world, including Texas. An earlier bat migration fits with many pieces of the climate change puzzle, including earlier migrations of some bird species and earlier blossoming of many plants, said Phillip Stepanian, a meteorologist with Rothamsted Research who co-authored a new study in the scientific journal Global Change Biology on bat migration using the radar data.

Read the Inside Climate News story by Bob Berwyn - “Bat swarms tracked by weather Radar Reveal Earlier Migration as Planet Warms.

Daily Wire article misunderstands study on carbon budget

This story at The Daily Wire describes a new study that evaluates the remaining amount of greenhouse gas that we can emit before global temperature rises to 1.5 °C above pre-industrial times. The study suggests that we may have a little more room in the so-called “carbon budget” than previously estimated.

Scientists who reviewed the Daily Wire article found that it greatly misinterpreted the study by saying that it showed that climate projections have overestimated warming. This is incorrect. The study does not conclude that climate models are overly sensitive to warming, or that future warming will be less than projected. Instead, it investigates a discrepancy between the total amount of greenhouse gas emitted since the Industrial Revolution in the models and in the real world. This difference in estimated past emissions affects the study’s calculation of the remaining “carbon budget” for future emissions.

Read the Climate Feedback story - “Daily Wire article misunderstands study on carbon budget (along with Fox News, The Telegraph, The Daily Mail, Breitbart…).”