Last week I presented at the Australian Academy of Science on ‘techno-fixes for climate change’. This talk was part of an AAS series organised by Bryan Gaensler called “Science Fiction becomes Science Fact“. My talk was vodcast, and goes for 38 min, followed up by about 17 min of Q&A with the audience at the Shine […]
Category: Scenarios
Originally published here on The Conversation. Earth is now a human planet. Our species uses of a large proportion of its land-surface area for living space, agriculture and mining. We domesticate and transport a multiplicity of plant and animal species across continents. We sequester and divert freshwater. We heavily exploit the world’s plants, animals and […]
Back in 2013, I led some research that critiqued the ‘Planetary Boundaries‘ concept (my refereed paper, Does the terrestrial biosphere have planetary tipping points?, appeared in Trends in Ecology & Evolution). I also blogged about this here: Worrying about global tipping points distracts from real planetary threats. Today a new paper appeared in the journal Science, […]
Below is a new, detailed critique by Dr Ted Trainer of the simulation studies by Elliston, Diesendorf and MacGill on how eastern Australia might be run off 100% renewable energy. The summary: Three recent papers by Elliston, Diesdendorf and MacGill (2012, 2013a, 2013b) elaborate on a proposal whereby it is claimed that 100% of present Australian electricity demand could be provided […]
Guest post by Dr Ted Trainer, University of NSW (http://ssis.arts.unsw.edu.au/tsw/). For other critiques of the “100 Per Cent Renewables Study – Draft Modelling Outcomes” report on BNC, see here and here. Summary: The AEMO report concludes that 100% of Australian electricity demand could be met by renewable energy sources. The claim is far from established and highly challengeable […]
Brave New Climate 