Pyrolysis of forest residues from 200 hectares of timberland, pyrolysis of crop residues from 120 million hectares of farmland, and pyrolysis of fast-growing vegetation from another 30 million hectares of idle cropland could each sequester about ten percent of U.S. annual fossil-fuel emissions.
In a commentary in Nature, Lehmann proposed the idea of power plants fueled with materials such as forest residues or fast-growing plants such as switch grass growing on idle land.
However, you ignored the fact that the vast majority of biomass used for energy in the EU is sourced already from either sustainably managed forest, timber processing residues or biodegradable waste.
Getting a pesticide from the lab to the market takes seven or eight years, and pesticides cannot be marketed if they leave residues of more than 0.1 micrograms per litre of water, irrespective of their toxicity.
Aquagestión's tests mainly follow American norms, which ban residues of all but one antibiotic.Nevertheless, antibiotics are used far more heavily in Chile than in Norway.
For all the fields and roofs covered with solar panels and the once-empty uplands enlivened by wind turbines, by far the biggest power source in the plans is biomass: wood, crop residues and other burnable recently living stuff.
Another is to do as little ploughing as possible, leaving crop residues on the ground.The best way to encourage such practices is to get someone else to bear the cost.
They point out that rice, for example, is permitted to contain 34,180 times more pesticide residues than bottled water, which has, they say, similar levels to fizzy drinks.
They say this would enable sites to be left fallow for longer periods, allowing residues to disperse.A team from the United States' Food and Drug Administration recently inspected Chilean salmon farms.
They insinuate ulterior motives behind CSE's campaign.Ms Narain argues that some residues must be tolerated in food, since farmers use pesticides to grow crops.
José Miguel Burgos of Aquagestión, one of several inspection laboratories in Puerto Montt, says that it is very difficult for the farms to befool the system of mandatory pre-harvest analysis of antibiotic residues.
