Cleantech Blog » Paul O`Callaghan http://www.cleantechblog.com Premier site for commentary on news and technology relating to clean tech. Tue, 24 Jan 2012 16:31:20 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Resource Recovery from wastewater – the new paradigm http://www.cleantechblog.com/2010/07/resource-recovery-from-wastewater-new.html http://www.cleantechblog.com/2010/07/resource-recovery-from-wastewater-new.html#comments Mon, 26 Jul 2010 14:55:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2010/07/26/resource-recovery-from-wastewater-the-new-paradigm.html http://www.cleantechblog.com/2010/07/resource-recovery-from-wastewater-new.html/feed 3 Low Cost Desalination – Saltworks Breakthrough http://www.cleantechblog.com/2009/11/low-cost-desalination-saltworks.html http://www.cleantechblog.com/2009/11/low-cost-desalination-saltworks.html#comments Tue, 03 Nov 2009 16:15:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2009/11/03/low-cost-desalination-saltworks-breakthrough.html http://www.cleantechblog.com/2009/11/low-cost-desalination-saltworks.html/feed 4 Joule Biotech Sun-Powered Fuel – Biofuel Vs Solar PV http://www.cleantechblog.com/2009/08/joule-biotech-sun-powered-fuel-biofuel.html http://www.cleantechblog.com/2009/08/joule-biotech-sun-powered-fuel-biofuel.html#comments Sun, 16 Aug 2009 20:52:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2009/08/16/joule-biotech-sun-powered-fuel-biofuel-vs-solar-pv.html http://www.cleantechblog.com/2009/08/joule-biotech-sun-powered-fuel-biofuel.html/feed 7 Water & Energy – crisis and opportunity http://www.cleantechblog.com/2009/06/water-energy-crisis-and-opportunity.html http://www.cleantechblog.com/2009/06/water-energy-crisis-and-opportunity.html#comments Tue, 23 Jun 2009 14:33:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2009/06/23/water-energy-crisis-and-opportunity.html http://www.cleantechblog.com/2009/06/water-energy-crisis-and-opportunity.html/feed 10 A Perfect Storm for Water http://www.cleantechblog.com/2009/03/perfect-storm-for-water.html http://www.cleantechblog.com/2009/03/perfect-storm-for-water.html#comments Thu, 19 Mar 2009 20:44:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2009/03/19/a-perfect-storm-for-water.html http://www.cleantechblog.com/2009/03/perfect-storm-for-water.html/feed 3 Peak Phosphorus – Commence Urine Recyling on Space Station Earth http://www.cleantechblog.com/2009/01/peak-phosphorus-commence-urine-recyling.html http://www.cleantechblog.com/2009/01/peak-phosphorus-commence-urine-recyling.html#comments Thu, 15 Jan 2009 04:21:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2009/01/15/peak-phosphorus-commence-urine-recyling-on-space-station-earth.html http://www.cleantechblog.com/2009/01/peak-phosphorus-commence-urine-recyling.html/feed 3 Energy Versus Water http://www.cleantechblog.com/2008/11/energy-versus-water.html http://www.cleantechblog.com/2008/11/energy-versus-water.html#comments Sat, 01 Nov 2008 18:13:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/11/01/energy-versus-water.html http://www.cleantechblog.com/2008/11/energy-versus-water.html/feed 1 Market Turmoil ….. just when you thought is was safe to invest in Water! http://www.cleantechblog.com/2008/10/market-turmoil-calvert-and-fourwinds.html http://www.cleantechblog.com/2008/10/market-turmoil-calvert-and-fourwinds.html#comments Fri, 17 Oct 2008 23:57:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/10/17/market-turmoil-just-when-you-thought-is-was-safe-to-invest-in-water.html http://www.cleantechblog.com/2008/10/market-turmoil-calvert-and-fourwinds.html/feed 0 Californian City Considers Buying back lawns to save water http://www.cleantechblog.com/2008/10/how-green-is-your-lawn.html http://www.cleantechblog.com/2008/10/how-green-is-your-lawn.html#comments Sat, 04 Oct 2008 22:07:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/10/04/californian-city-considers-buying-back-lawns-to-save-water.html http://www.cleantechblog.com/2008/10/how-green-is-your-lawn.html/feed 10 Counting the Cost of Water http://www.cleantechblog.com/2008/09/counting-cost-of-water.html http://www.cleantechblog.com/2008/09/counting-cost-of-water.html#comments Tue, 23 Sep 2008 20:17:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/09/23/counting-the-cost-of-water.html http://www.cleantechblog.com/2008/09/counting-cost-of-water.html/feed 0 Breakthrough in solar energy storage http://www.cleantechblog.com/2008/08/breakthrough-in-solar-energy-storage.html http://www.cleantechblog.com/2008/08/breakthrough-in-solar-energy-storage.html#comments Sat, 09 Aug 2008 20:06:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/08/09/breakthrough-in-solar-energy-storage.html http://www.cleantechblog.com/2008/08/breakthrough-in-solar-energy-storage.html/feed 8 There’s water in dem dar clouds! http://www.cleantechblog.com/2008/08/renewable-energy-for-water-production.html http://www.cleantechblog.com/2008/08/renewable-energy-for-water-production.html#comments Sun, 03 Aug 2008 21:37:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/08/03/theres-water-in-dem-dar-clouds.html http://www.cleantechblog.com/2008/08/renewable-energy-for-water-production.html/feed 3 Whiskey’s for drinkin’, water’s for investing in http://www.cleantechblog.com/2008/07/whiskeys-for-drinkin-waters-for.html http://www.cleantechblog.com/2008/07/whiskeys-for-drinkin-waters-for.html#comments Tue, 29 Jul 2008 00:20:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/07/29/whiskeys-for-drinkin-waters-for-investing-in.html http://www.cleantechblog.com/2008/07/whiskeys-for-drinkin-waters-for.html/feed 3 A tipping point in water re-use? http://www.cleantechblog.com/2008/07/tipping-point-in-water-re-use.html http://www.cleantechblog.com/2008/07/tipping-point-in-water-re-use.html#comments Fri, 18 Jul 2008 21:05:00 +0000 Paul O`Callaghan http://174.122.49.94/~ct/2008/07/18/a-tipping-point-in-water-re-use.html http://www.cleantechblog.com/2008/07/tipping-point-in-water-re-use.html/feed 0