Tagged: ocean acidification

At the beach? Meet global warming’s evil twin - Infrequently Asked Questions

Lynley Hargreaves Jan 15, 2015

Kina, or New Zealand sea urchin One third of our carbon dioxide emissions are absorbed by the world’s oceans, which increases the acidity of the water and affects marine life. The University of Auckland’s Associate Professor Mary Sewell looks into the impacts on kina, or the New Zealand sea urchin, and how their fertilisation, early development and metabolism change. Read More

While they sleepwalk in Warsaw: icebergs calve, emissions climb, “pause” disappears - Hot Topic

Gareth Renowden Nov 20, 2013

Warsaw has seen a deluge of important climate-related information released — so much that it’s been difficult to keep up — but still not enough to steel negotiators to reach an equitable arrangement that gives us all a chance at a reasonable future climate. And at the same time, the planet has been sending signals […] … Read More

Something (early) for the weekend: grim forecast for oceans and the roots of denial - Hot Topic

Gareth Renowden Oct 17, 2013

Something of a miscellany today, coupled with an open thread, to keep you going during a brief pause in posting. First up: a study published this week in PLOS Biology looks at changes in ocean chemistry, temperature and primary productivity over the next century under two emissions scenarios, and finds that no corner of the […] … Read More

New Zealand’s changing climate and oceans: new Gluckman report out today - Hot Topic

Gareth Renowden Aug 01, 2013

The Prime Minister’s science advisor, Sir Peter Gluckman, today released a new report looking at the probable impacts of climate change in New Zealand over the next 40 years. The report, New Zealand’s Changing Climate and Oceans: The impact of human activity and implications for the future (pdf) is: … intended to update the public […] … Read More

Antarctic Voyage: Ocean Acidification - Field Work

Guest Author Mar 06, 2013

Written by Elizabeth Shadwick (ACE CRC) Date:5/3/2013 Location: 62.803893°S, 147.03681°E Weather: Cloudy, 25-30 knots Sea state: 3-4 m swell Pink Errina fissurata attached to pebbles on the Ross Sea slope, Antarctica at 470 m depth. Other invertebrates visible in the image are a variety of sponges and the white spiky brittle star Ophiacantha pentactis. [ … Read More

Climate change and the acidifying, freshening, warming Southern Ocean - Guest Work

Guest Author Nov 30, 2011

by Matthew Thompson, editor – The Conversation The distinctive, planet-encircling flows of the Southern Ocean have played a role in moderating global warming, but change is at hand with the water heating up, getting less salty, storing more carbon, and growing more acidic. The Southern Ocean, as photographed during the Thomas G Thompson Southern Ocean Expedition. These … Read More

The God Species - Hot Topic

Bryan Walker Aug 14, 2011

It’s an arresting title, The God Species: How the Planet Can Survive the Age of Humans. For author Mark Lynas the Holocene, the 10,000 year post-ice age era during which human civilisation evolved and flourished, has given way in industrial times to the Anthropocene, an age in which the human population has undergone extraordinary growth, [...] … Read More

The Climate Show #16: Keith Hunter on oceans, acids and the carbon cycle - Hot Topic

Gareth Renowden Jul 15, 2011

We learned a lot this week, as Professor Keith Hunter of the University of Otago, one of the world’s leading ocean chemists, gave us a masterclass on ocean acidification and what it means for the future of the oceans. Plus we discuss Australia’s new carbon tax, green growth campaigns in New Zealand, why China’s aerosols [...] … Read More

The Climate Show #15: Michael Ashley and the ineducable Carter - Hot Topic

Gareth Renowden Jun 29, 2011

We thought we’d try for a record short show — and failed, because once again there was just to much to talk about. We have more on Eritrean volcanoes, extreme weather over the last 18 months, a new report on the dire state of the oceans, and Stoat’s big bet. Special guest is Professor Michael [...] … Read More

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