Climate change, anxieties and actions

Oil refining
Image courtesy of NASA

(reading time: 11 mins)

This summer’s heatwave through Europe and Asia was one of many extraordinary weather events, which along with forest fires, storms and flash floods, are becoming less extraordinary every year. Scientists are not claiming direct cause and effect for individual weather events, rather there is a very simple principle at work – CO2 and Methane put more energy into our weather systems. The more energy goes in, the more energy comes out, with greater frequency and intensity of extreme weather events.

The IPCC October 2018 report and the ‘hothouse earth’ report that rounded off the summer both re-state that climate change may become irreversible, but with the worrying twist that the tipping point may be closer than previously thought. There are more frequent warnings that we really could leave Earth permanently damaged for our species, perhaps within a few generations.

Such headlines grab the attention for a time because our hunter-gatherer brains are hardwired to monitor for immediate threats. However as the solution requires action outside of our control, what remains is often a sense of powerlessness.  Continue reading…

BioDiesel. The Good, the Bad, and the Chippy

biodiesel tanks on a farm

(reading time: 4 mins)

I do around 2000 miles per year by car. To further reduce carbon emissions and air pollution I’ve been filling up my Golf Tdi mk4 with recycled food oil biodiesel. Crops grown for Biofuels compete with food production for land and water. However recycling food oil into fuel should not be dismissed as it reduces carbon and generally burns more cleanly than standard mineral diesel.

In use I’ve found no loss of power and the engine runs as smoothly as before, if not slightly better. Because biodiesel contains more Oxygen and cleans deposits from your fuel system, it’s recommended to change the fuel filter after the first 1000 miles. My 2002 Golf Tdi is well suited to running 100% biodiesel. Continue reading…