Posted on July 28, 2021Categories Earth   Leave a comment on Dinosaurs’ ascent driven by volcanoes powering climate change

Dinosaurs’ ascent driven by volcanoes powering climate change

Ecological changes following intense volcanic activity during the Carnian Pluvial Episode 230 million years ago paved the way for dinosaurs to become the dominant species. Credit: Pixabay The rise of dinosaurs coincided with environmental changes driven by major volcanic eruptions over 230 million years ago, a new study reveals. The Late Triassic Carnian Pluvial Episode (CPE) saw an increase in global temperature and humidity—creating a major impact on the development of animal and plant life, coinciding with the establishment of … Continue reading “Dinosaurs’ ascent driven by volcanoes powering climate change”

Posted on July 28, 2021Categories Earth   Leave a comment on What does groundwater have to do with lake algal blooms?

What does groundwater have to do with lake algal blooms?

Ammar Safaie collecting bathymetry data for the Gull Lake model in 2015. Credit: Phani Mantha The source of troublesome lake algae is not always clear, but an interdisciplinary research project with two Michigan State University researchers found an answer may include colder groundwater that feeds some inland lakes. This finding could help predict the formation of harmful algal blooms to mitigate their impact on drinking water, tourism, fishing and fish toxicity. “I have been monitoring the HABs in Gull Lake … Continue reading “What does groundwater have to do with lake algal blooms?”

Posted on July 28, 2021Categories Earth   Leave a comment on A look back into record-breaking 2020 mei-yu rainfall and flooding throughout China

A look back into record-breaking 2020 mei-yu rainfall and flooding throughout China

Credit: CC0 Public Domain During summer 2020, heavy precipitation affected a significant portion of China and East and South Asia. The Yangtze River basin bore the brunt of extensive flooding, which caused loss of lives, considerable property damage and prompted millions of people to move to higher ground. To better understand why annual “mei-yu” conditions began earlier and ended later than normal, Dr. Ambrogio Volonté and his team from the University of Reading focused on specific atmospheric dynamics throughout China’s … Continue reading “A look back into record-breaking 2020 mei-yu rainfall and flooding throughout China”

Posted on July 28, 2021Categories Earth   Leave a comment on Early human activities impacted Earth’s atmosphere more than previously known

Early human activities impacted Earth’s atmosphere more than previously known

Four ice cores from continental Antarctica were drilled in East Antarctica, including two as part of the Norwegian-American International Polar Year Antarctic Scientific Traverse. Credit: Stein Tronstad Several years ago, while analyzing ice core samples from Antarctica’s James Ross Island, scientists Joe McConnell, Ph.D., and Nathan Chellman, Ph.D., from DRI, and Robert Mulvaney, Ph.D., from the British Antarctic Survey noticed something unusual: a substantial increase in levels of black carbon that began around the year 1300 and continued to the … Continue reading “Early human activities impacted Earth’s atmosphere more than previously known”

Posted on July 28, 2021Categories Earth   Leave a comment on Pacific’s urgent call to climate action as crunch talks loom

Pacific’s urgent call to climate action as crunch talks loom

The COP26 summit will bring together representatives from 196 countries and the European Union for the biggest climate conference since landmark talks in Paris in 2015. Pacific island leaders have urged industrialised nations to bring plans for real action, not good intentions, to upcoming climate talks, painting a grim picture of the environmental horrors they face. Fiji Prime Minister Frank Bainimarama said low-lying Pacific states were bearing the brunt of global warming‘s impact and their voices must be heard at … Continue reading “Pacific’s urgent call to climate action as crunch talks loom”

Posted on July 28, 2021Categories Earth   Leave a comment on Use of natural gas will decline if we are to achieve 1.5 C climate targets

Use of natural gas will decline if we are to achieve 1.5 C climate targets

Credit: CC0 Public Domain A new review from Imperial has found that the use of natural gas will reduce by 35% by 2050 in order to meet climate targets. The analysis also concludes that carbon capture and storage (CCS) will be vital to achieving climate goals while still using natural gas. The review, part of the latest white paper from Imperial College London’s Sustainable Gas Institute, looks at potential natural gas use in Paris Agreement scenarios. It includes how natural … Continue reading “Use of natural gas will decline if we are to achieve 1.5 C climate targets”

Posted on July 28, 2021Categories Earth   Leave a comment on Moderate earthquake rocks Bali, killing at least 3

Moderate earthquake rocks Bali, killing at least 3

A woman walks past houses by Lake Batur which were damaged by an earthquake-triggered landslide in Bangli, on the island of Bali, Indonesia, Saturday, Oct. 16, 2021. A few people were killed and another several were injured when a moderately strong earthquake and an aftershock hit the island early Saturday. Credit: AP Photo/Dewa Raka A moderately strong earthquake and an aftershock hit Indonesia’s resort island of Bali early Saturday, killing at least three people and destroying dozens of homes. The … Continue reading “Moderate earthquake rocks Bali, killing at least 3”

Posted on July 28, 2021Categories Earth   Leave a comment on Changing ocean currents are driving extreme winter weather

Changing ocean currents are driving extreme winter weather

Transmission towers and lines were covered in snow in East Texas. The state experienced a power crisis during severe winter storms in February, resulting in about $20 billion in socioeconomic damages, according to NOAA. Credit: Matthew Rader Throughout Earth’s oceans runs a conveyor belt of water. Its churning is powered by differences in the water’s temperature and saltiness, and weather patterns around the world are regulated by its activity. A pair of researchers studied the Atlantic portion of this worldwide … Continue reading “Changing ocean currents are driving extreme winter weather”

Posted on July 28, 2021Categories Earth   Leave a comment on Extreme rain over California’s burn scars causes mudslides: This is what cascading climate disasters look like

Extreme rain over California’s burn scars causes mudslides: This is what cascading climate disasters look like

Two powerful storm systems known as atmospheric rivers are heading for northern California and Oregon, a region in the midst of an historic drought. While the storms will bring much-needed water to a parched region and should significantly lower the wildfire risk, they also bring dangerous new flood and mudslide risks, particularly in areas recovering from wildfires. Wildfires strip away vegetation and leave the soil less able to absorb water. A downpour on these vulnerable landscapes can quickly erode the … Continue reading “Extreme rain over California’s burn scars causes mudslides: This is what cascading climate disasters look like”

Posted on July 28, 2021Categories Earth   Leave a comment on Advancing agriculture threatens the livelihoods of forest-dependent people

Advancing agriculture threatens the livelihoods of forest-dependent people

Credit: CC0 Public Domain Forest-dependent people living across the Gran Chaco have been put on the map for the first time. As agribusiness expands into the dry forest on which they rely, the impact of that expansion on them has been difficult to document because their homesteads are dotted over 1 million km2. But now an international team of researchers, including a researcher from McGill University, has used high resolution satellite imagery to systematically identify these homesteads across this vast … Continue reading “Advancing agriculture threatens the livelihoods of forest-dependent people”