ScienceDaily: Top Environment News

Jay OwenEarth Systems Science

 

ScienceDaily: Top Environment News

  • Dust deposits give new insights into the history of the Sahara
  • Scientists shed light on carbon’s descent into the deep Earth
  • Sea temperature changes contributing to droughts
  • Destruction of wetlands linked to algal blooms in Great Lakes

 

Dust deposits give new insights into the history of the Sahara

Posted: 19 Jul 2017 08:50 AM PDT

Remote Saharan dust influences Earth’s radiation budget and tropical North Atlantic ocean-atmosphere temperature variability that might even attenuate Hurricane activity. In a new research study an international team of geoscientists reconstructed the history of Saharan dust storms during the last 12,000 years. The researchers identified several millennial-scale phases of enhanced Saharan dust supplies during the transition of the former ‘green Sahara’ to the present-day hyper-arid desert.

 

Sea cave preserves 5,000-year snapshot of tsunamis

Posted: 19 Jul 2017 05:48 AM PDT

Scientists digging in a sea cave in Indonesia have discovered the world’s most pristine record of tsunamis, a 5,000-year-old sedimentary snapshot that reveals for the first time how little is known about when earthquakes trigger massive waves.

 
 
Sea temperature changes contributing to droughts

Posted: 19 Jul 2017 05:47 AM PDT

Fluctuations in sea surface temperature are a factor in causing persistent droughts in North America and around the Mediterranean, new research suggests

Destruction of wetlands linked to algal blooms in Great Lakes

Posted: 19 Jul 2017 05:46 AM PDT

Canada’s current wetland protection efforts have overlooked how the environment naturally protects fresh-water resources from agricultural fertilizer contaminants