We are seeing extreme weather events, increased temperatures, and the West Antarctic and Greenland ice-sheets melting at unprecedented rates, decades ahead of scientific projections.
It makes little sense to try and work out projected growth rates decades ahead, compute a social cost of carbon, apply standard discounting and put together a plan which attempts to maximise welfare for all generations, including the present one.
Along with Texas, the Golden State has been an archetype of the United States' prison boom since the war on drugs began escalating incarceration rates decades ago.
However, the parking meter lease locks Chicago into a particular policy on parking for 75 years - including setting rates decades into the future.
The concentrations of CO2 in the atmosphere are increasing at an accelerating rate from decade to decade although many endeavours have been made to decrease the global emissions.
Texas has been growing at a stupefying rate for decades.
Unemployment hovered around 10%, the highest rate in decades.
Even teen-age pregnancy is at its lowest rate in decades.
As their host economies grow at the fastest rate in decades, Indian firms stand to prosper.
