issues in science 4

Recent satellite observations have been used to detect ground level emissions of methane, the greenhouse gas, and there has been a surprise in the level of methane being produced by tropical rainforests – possibly through termites. This is the first time ground-level concentrations, near the source of the emissions, have been able to be measured in this way, so that speculation on causes can be more solidly based.

Interesting developments are occurring in the fields of computing, robotics and parallel processing with the application of electroactive and other gels. It seems chemistry is becoming as vital if not more vital than physics to the future of AI. Much of this is still at the stage of ‘huge potential’, but BZ-based chemistry is at the heart of the new activity. The BZ reaction involved cascading effects which can be organised to form circuits. As one expert points out, BZ chemistry is one of the best models for what goes on inside our heads. It’s moving closer to a biological model. The Blob apparently wasn’t sci-fi at all.

Some contradictory research is being published currently about the risks attached to cannabis use, along with contradictory interpretations of findings. The major point of controversy is whether cannabis use might lead to schizophrenia in young people. The results still seem inconclusive, and there are arguments about whether laws should be changed or warnings issued. The author of a recent survey that has given pause to the UK govt suggests laws to keep the drug out of the hands of teens, and to outlaw extra strong varieties. Others say the minority at risk is very tiny and new laws aren’t required.

From New Scientist March 26