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 Cosmos Online Will climate reshape the world economy?Pressure is building for a political breakthrough – we look into what you should expect at a key climate change conference opening in Bali this week.  Factfile: The evidence for climate changeWith a major conference on the future of climate change being held in Bali this week, we consider the scientific evidence and predictions for its impacts this century.  Making the gradeRenowned palaeontologist Jack Horner, a technical advisor to the Jurassic Park films, tells us about his battle to break into science as a dyslexic.  The DNA repair shopRather than fixing severe mutations in situ, our cells may have specialised repair shops for damaged DNA. Understanding the process could be vital to protect Mars-bound astronauts against cosmic rays.  Where science meets artScience and the arts are partners in the messy search for truth. The spirit of seeking knowledge and exploration is precious to both disciplines.  Gravity ballOn a GRACE satellite map, the Earth looks like a warty ball, with red bumps and deep blue holes highlighting fluctuations in the planet's gravity.  The science of knockoutsThe technique revolutionised modern genetics and won a Nobel Prize, here we tell the tale of gene knockouts.  A call to actionIf the CSIRO's latest climate report is not to become Australia's epitaph then our country must live up to its global responsibilities, and the following actions are required.  On nature vs nurtureThe relative contribution of our genes and environment to our behaviour is a long-running debate. British science writer Matt Ridley, author of Nature via Nurture, here gives his perspective.  Australia's top 10 young scientistsAnnouncing the winners of the Cosmos Bright Sparks Awards, an annual tribute to the brightest young science minds Australia has to offer.  Why organic food can't feed the worldRecent studies have re-visited the idea that organic methods of agriculture would be sufficient to feed the world – but they are flawed because of naïveté about agriculture in developing nations.  Global warming: a timelineAmid warnings that global warming is occurring at a faster rate than existing worst-case scenarios, we bring you a timeline of the issue to date.  City sanctuary is mammal-free zoneThe plaintive night time cry of New Zealand's iconic but endangered kiwi is being heard for the first time in more than a century in the nation's capital.  Biodiversity needs a global monitorWith a growing global extinction crisis, we need a mechanism like the Intergovernmental Panel on Climate Change to put conservation into action.  Is the universe a doughnut?What does The Simpsons have to say about cosmology? Find out in this extract from What's Science Ever Done for Us? – an unauthorised and amusing look at science in the cult cartoon series. 
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