Alaska’s top-heavy glaciers are approaching an irreversible tipping point

The melting of one of North America’s largest icefields has accelerated and could soon reach an irreversible tipping point. That’s the conclusion of new research colleagues and I have published on the Juneau Icefield, which straddles the Alaska-Canada border near the Alaskan capital of Juneau.

In the summer of 2022, I skied across the flat, smooth and white plateau of the icefield, accompanied by other researchers, sliding in the tracks of the person in front of me under a hot sun. From that plateau, around 40 huge, interconnected glaciers descend towards the sea, with hundreds of smaller glaciers on the mountain peaks all around.

Read the full article here!

Comments

NEA – Sampling and Data presentation

No doubt you have by now spent considerable time considering the different methods you will use to collect data. This is valuable and important as methods are the salient factor in determining the accuracy of the data and subsequent conclusion therefore weaknesses in the methods reduce the certainty of the conclusions. The blog post here looks at some techniques you may wish to use to present your data amongst other important pieces of information. There are also further pieces of information to be found below: Barcelona Field Studies Centre Field studies council General data presentation

Nature’s Pharmacy, Our Treasure Chest: Why We Must Conserve Our Natural Heritage

Medicinal plants grow naturally around us. Over centuries, cultures around the world have learned how to use plants to fight illness and maintain health. These readily available and culturally important traditional medicines form the basis of an accessible and affordable health-care regime and are an important source of livelihood for indigenous and rural populations. Increasingly, medicinal species that reside in natural areas have received scientific and commercial attention. In the United States, of the top 150 prescription drugs, at least 118 are based on natural sources. A child suffering from leukemia in 1960 faced a 10 percent chance of remission; by 1997, the likelihood of remission had been increased to 95 percent thanks to two drugs derived from a wild plant native to Madagascar. But we still know little about the treasure trove inhabiting our wild places. As of 1995, less than 1 percent of all tropical plant species had been screened for potential pharmaceutical applications...

Statistical testing for the NEA

Statistical testing is a key piece of your NEA data analysis. The links below give you access to some key statistical tests you may be able to use when analysing the data you have collected. Spearmans rank: Click here Mann Whitney U: Click here Chi Squared: Click here

The Kennet Geog Blog

Search This Blog