He started a pig farm, which had the reputation of being one of the cleanest in the United States.
As to renewable energy policy ("Bonfire of the subsidies", April 6th) you argue in favour of setting a carbon price and letting the market find the cleanest and cheapest technology for curbing carbon emissions.
No wonder, given such vigilance and such penalties, the Atlanta Olympics in 1996 were declared the "cleanest" ever, with just two of the 2,000 athletes checked (out of a total 11,000 competing) failing a drugs test.But were the Atlanta games really the cleanest ever?
Reprints Related topics United States Technology Science and technology Automotive technology Electric vehiclesIt was no surprise that electric cars whose batteries were topped up from wind, solar or hydroelectric sources came out cleanest, causing 231 putative deaths over the course of a year, compared with 878 for petrol cars.
Methane is the cleanest of the fossil fuels when burned; but released directly into the atmosphere, it is a "greenhouse gas" significantly more potent than carbon dioxide.
If the public sector is inefficient and prone to graft, as Panama's is the country ranks joint 84th cleanest out of 180 in Transparency International's index of perceptions of corruption the cash may be wasted or end up in the wrong hands.
That makes them excellent team players one reason why Estonia's public institutions are the strongest and cleanest in the ex-communist world.
"Borat" (pictured above) made Kazakhstan sound awful, claiming among other things that its national anthem included the couplet "Kazakhstan's prostitutes cleanest in the region/ Except of course for Turkmenistan's".
Transparency International, a corruption watchdog, ranks it second cleanest in the region, just behind Chile.
I hand it back to her and she slaps on a label: "The Cleanest Air On Earth .Below that, a graph shows Keeling's curve and today's carbon dioxide concentration, measured right here at ARO.
Light from the sun is the most abundant and cleanest source of energy available in the solar system.
