Understanding Climate Risk

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Archive for the ‘Ocean Warming’ Category

Hunt lies as the reef dies

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Twitter is going off after Australia’s Minister for the Environment Greg Hunt posted this:

Hunt-reef-claim

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Written by Roger Jones

May 30, 2016 at 10:14 pm

The scientific origins of the gradualist adaptation narrative and how to move beyond it

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The following statements are typical of the gradualist adaptation narrative:

  1. Within limits, the impacts of gradual climate change should be manageable.
  2. Therefore, climate change adaptation can be understood as: (a) adapting to gradual changes in average temperature, sea level and precipitation.
  3. Gradual climate change allows for a gradual shift in the mix of crops and to alternative farming systems.

So why are Gauss and Newton in the bath and Ed Lorenz in the hot tub?

Bath&Jacuzzi

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2012 Marine Report Card

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Warmer oceans, tropical species being found further south, decline in temperate species, the first signs of CO2 effects on shell production in Australian waters …

These are a few of the headlines from the Marine Climate Change in Australia, Impacts and Adaptation Responses 2012 Report Card (download pdf). Put together by the Marine Biodiversity and Resources Adaptation Network (NCCARF), Fisheries Research and Development Corporation, and CSIRO’s Climate Adaptation Flagship. The reporting comprehensive,  covering the report card itself and six chapters on marine climate and thirteen on marine biodiversity. Alistair Hobday, summarising the report card on The Conversation.

Here’s a summary with some of my own conclusions about observed and projected changes. The latter you can take or leave as they’re based on my personal views about how climate changes. For recent and near future changes, I place a greater emphasis on how climate is likely to change rather than by how much. This places the emphasis more on the diagnosis and understanding of change rather than prediction. There’s a fair bit in doing this, so amongst other things I’m into today (like gardening, cooking and cleaning), I’ll update these sections as I go (Sunday 11 am, SST; Wednesday, SLR). Read the rest of this entry »