Greenies can be pro-nuclear

7 10 2013

happy-nuclear-powerPublished today on The Conversation by Ben Heard & me.

The IPCC fifth climate change report lays out a carbon budget that we must follow if we’re to keep the world under a temperature rise of 2C over pre-industrial levels – the widely accepted level above which lies catastrophic climate change. According to the report, we can “spend” 1,000 gigatonnes (Gt) CO2 in total. We’ve already spent more than half, and at the current rates we are on track to blow the other half in 30 years.

Not only is human society at risk from this unprecedented rate of warming, the ecosystems on which all life is based are also seriously under threat.

So it’s a timely moment to look at how we could avoid burning through our carbon budget, including controversial options such as nuclear energy.

This week marks the beginning of the Australian tour of a new documentary, Pandora’s Promise. The film aims to dispel myths and spark a debate about whether you can be simultaneously “pro-nuclear” and an environmentalist.

Renewable failure

Even with the best of intentions to reduce the magnitude of future climate disruption, decades of focus on carbon pricing and the promotion of renewable energy sources cannot hide our failure to provide scalable, large, reliable sources of clean (low or emissions-free) energy.

Today, wind turbines and solar panels combined deliver only around 3% of total electricity consumption in Australia, with coal providing 70 %, and gas another 20 %. The contribution of renewable energy has decreased over time – in 1960 renewable energy contributed 19% (largely thanks to hydropower) and coal 76 %. Total renewable energy contribution today, including hydro, has shrunk to 9%.

This is thanks, in substantial part, to the mismatch between dispersed, intermittent wind and solar technologies and the large, continuous fossil fuels we need to replace.

These sobering statistics are in no way an argument to abandon renewables, but they are evidence of a serious failure to date and point to near-certain failure in future. Passing the blame to media, fossil fuel interests or other favoured scapegoats makes us feel good and is no doubt deserved. But we must also cease avoiding uncomfortable truths about the inadequacy of the solutions we have advocated to date. Read the rest of this entry »

Cartoon guide to biodiversity loss XVIII

13 02 2013

Here’s the latest 6 biodiversity cartoons for your simultaneous viewing pleasure and pain (see full stock of previous ‘Cartoon guide to biodiversity loss’ compendia here).

Read the rest of this entry »

Energy policy – substance wins over style

4 02 2013

happy nuclearThere’s a gradual, but rising tide of rational, enviro-progressive scientists out there who are committed to solving some of the world’s biggest problems. Many of these problems involve touchy subjects, including ways to reduce poverty while improving or maintaining high standards of living elsewhere, the means for ‘sustainable’ electricity generation, and how to limit the human population’s over-consumption and over-production.

Inevitably, however, many well-intentioned, but grossly misinformed environmentalists (‘enviro-conservatives’?) object to technical solutions based on emotional or ideological grounds alone. As self-professed enviro-progressives (but also scientists who base decisions on evidence, logic and balancing trade-offs as part of our everyday work), we hope to reduce this backlash by providing the data and analyses needed to make the best and most coherent decisions about our future.

On 14 September 2012, Japan’s government announced a nuclear-free policy to phase out its nuclear power generation by 2040. Of course, electricity demand would have to be supplied by both renewable energy and fossil fuels to respond the public unwillingness for nuclear power.

But is this most environmentally sound, safest and economically rational aim? In a new paper we’ve just had published in the peer-reviewed journal Energy Policy, we set out to test Japan’s intentions the best way we know – using empirical data and robust scenario modelling.

Before the March 2011 earthquake and tsunami, Japan produced 25% of its total electricity consumption from nuclear power, 63% from fossil fuels (mostly coal and liquefied natural gas), and 10% from renewables (including hydro). Originally, the Japanese government had planned to increase nuclear power up to 45% of supply, and include new renewables builds, to combine to make major cuts in greenhouse gas emissions by 2030 and meet or exceed their Kyoto targets. However, the original plan could reduce emissions by the energy sector from 1122 Mt CO2e in 2010 to < 720 Mt CO2e by 2030 (< 70% of 1990 emission levels). Read the rest of this entry »

We only have decades…

26 04 2012

… not centuries.

Here’s a little video production The Environment Institute put together that explains some of our lab‘s work and future directions.

CJA Bradshaw

Humans suddenly become intelligent

1 04 2012

Some described it as the “eco-topia”; some believed they had died in the night and awoken in a different universe. Some just stood there gaping stupidly.

Yet the events of 01 April 2012 are real*. Humans suddenly became intelligent.

In an unprecedented emergency UN session this morning, all the world’s countries pledged to an immediate wind-down of the fossil-fuel economy and promised to invest in a rational combination of nuclear and renewable energy sources. Some experts believe the pledge would see a carbon-neutral planet by 2020.

Additionally, the session saw a world-wide pledge to halt all deforestation by 2013, with intensive reforestation programmes implemented immediately.

Family planning would be embraced worldwide, with a concerted effort to see the human population plateau by 2070, and begin declining to a stable 2 billion by 2300. Read the rest of this entry »

Mucking around the edges

8 11 2011

Barry Brook over at beat me to the punch regarding our latest paper, so I better get off my arse and write my take on things.

This post is about a paper we’ve just had accepted and has come out online in Biological Conservation called Strange bedfellows? Techno-fixes to solve the big conservation issues in southern Asia - and it’s likely to piss off a few people, and hopefully motivate others.

We wrote the paper for a special issue of essays dedicated to the memory of our mate and colleague, Navjot Sodhi, who died earlier this year. The issue hasn’t been released yet, but we have managed to get our paper out well before.

Like Navjot, the paper is controversial. Also like Navjot, we hope it challenges a few minds and pushes a few boundaries. We, as conservation biologists, must accept the fact that we have largely failed – biodiversity is still being lost at an alarming rate despite decades and decades of good science, sound evidence-based policy recommendations and even some rescues of species on the ‘brink’. Huge consumption rates, a population of 7 billion humans and counting, carbon emissions exceeding all worst-case scenarios, and greater disparity of wealth distribution have all contributed to this poor performance.

So what else can we do? Read the rest of this entry »

100 actions to slow biodiversity loss

19 08 2010

I received an email a few days ago from Guillaume Chapron of the Swedish University of Agricultural Sciences (Sveriges lantbruksuniversitet) asking me to promote his ‘Biodiversity 100‘ campaign on I think it’s an interesting initiative, and so I’ll gladly spread the word.

Teaming up with George Monbiot of The Guardian, the Biodiversity 100 campaign seeks to encourage scientists and others to compile a list of 100 tasks that G20 governments should undertake to prove their commitment to tackling the biodiversity crisis.

Dr. Chapron writes: Read the rest of this entry »


Get every new post delivered to your Inbox.

Join 5,309 other followers

%d bloggers like this: