Category: Climate

6,000 years ago the Sahara Desert was tropical, so what happened?

saharadesert

As little as 6,000 years ago, the vast Sahara Desert was covered in grassland that received plenty of rainfall, but shifts in the world’s weather patterns abruptly transformed the vegetated region into some of the driest land on Earth.

Signs of climate change at Arctic tree line

plant-physliologist-spruce-tree

In northern Alaska’s Brooks Range, the earth as most of us know it comes to an end. From Fairbanks, the northernmost city on the North American road grid, drive up the graveled Dalton Highway.

Human-induced climate change began earlier than previously thought

IndustrialRevolution

Continents and oceans in the northern hemisphere began to warm with industrial-era fossil fuel emissions nearly 200 years ago, pushing back the origins of human-induced climate change to the mid-19th century.

What the Earth’s frozen burps tell us about global warming

IceBubbles

Analysis of bubbles trapped in ancient Antarctic ice suggests that as the planet heats up, plants and soils will add more carbon dioxide to the atmosphere.

Pathogenic bacteria hitchhiking on tiny plastic particles to North and Baltic Seas?

MicroplasticsVibro

With increasing water temperatures comes an increasing likelihood of potentially pathogenic bacteria appearing in the North and Baltic Seas. Scientists have now demonstrated that a group of such bacteria known as vibrios can survive on microplastic particles.

CO2 injected deep underground turns to rock – and stays there

Iceland
Carbon dioxide rapidly turns into solid carbonates when injected into basalt rocks. Done on a massive scale it could help limit climate change

Study finds limit on evaporation to ice sheets, but that may change

Arctic-sea-ice-002 (2)

Originally Published by environmentalresearchweb: all content Although the coastal regions of the Greenland Ice Sheet are experiencing rapid melting, a significant portion of the interior of that ice sheet has remained stable – but a new study suggests that stability may not continue. Topic: Climate

Sea Level Rise Swallows 5 Whole Pacific Islands

PacifcIslandSinking

Originally Published by Scientific American Evidence confirms dramatic climate change effects in the Solomon Islands Topic: Climate, Oceans

El Niño’s warm water devastates coral reefs in Pacific ocean

DeadCoral
Originally Published by Earth & Climate News — ScienceDailyResearchers visited Christmas Island, the world’s largest coral atoll, to measure the effects of El Nino. Eighty percent of the coral is dead, they report. Corals are communities of animals that have tiny photosynthetic algae living inside them in a mutually beneficial relationship. Corals are very temperature-sensitive. […]

New heat wave formula can help public health agencies prepare for extreme temperatures

109870_web
Originally Published by EurekAlert! – Earth ScienceExtreme heat can pose several health risks, especially during sustained periods of high temperatures. However, a uniform definition of a heat wave doesn’t exist. As a result, public health agencies may be unsure of when to activate heat alerts, cooling centers and other protective measures. A University of Missouri […]