Not sure if you have seen this, it appeared in my local paper

A MAJOR polar expedition by Coventry-based explorer Mark Wood has become a race against time after his team has been forced to revise its route at the 11th hour.

The unforeseen change means the start date for the North Pole 16 expedition has now had to be pushed back by a month.

Set to be the last expedition of its kind, Wood was due to embark on his 600 mile journey from the Russian Arctic Coast to the geographic North Pole on Saturday (February 20) with the aim of exposing the true extent of climate change in the Arctic.

However just days before Wood and his two serving soldier teammates were due to set off, it was revealed that the Arctic sea ice levels had hit a record low.

Even Government climate change advisor, Dr Stephen Harrison, had warned how dangerous Wood’s imperative expedition would be.

Now it’s emerged that Wood’s team has had to drastically revise its route in order to keep the £350,000 mission alive.

Thats a lot of dosh, I wonder what they spent it all on. Further information here:

http://coventryobserver.co.uk/news/record-low-ice-levels-arctic-sea-forced-coventry-explorer-revise-route-11th-hour/

TerryS:

You have to look at who the net immigrants really are in assessing their housing and health needs. Nearly half are students, who live at high density in shared properties. Many (in fact most) students stay on illegally, and don't graduate to forming a traditional household for a good while at least. There are also large numbers of single immigrants, or those who leave their families at home, who also tend to live at high density in shared accommodation, as do large families of e.g. Somalis. The result is much less pressure on housing that many assume, at least for the time being. Health care is dominated by neonatal needs, as immigrants are overwhelming the young, and thus have much reduced needs for the time being otherwise. I've not had time to update with the latest numbers, but the following charts give a useful idea:

Net migration by reason and citizenship
Student migration
Migration by age group

Hmm, just found this patent titled "Geochemical prospecting system".

The patent itself isn't interesting but it does say this:

In December, 1923, the United States Bureau of Mines, under the auspices of the United States Department of the Interior, published an investigation report, Serial No. 2553, entitled Gaseous Content of Ground Waters as an Aid to the Petroleum and Natural Gas Prospector,

I wonder if it is possible to get this report and if any of the investigations took place in or near Dimock.

TerryS
Not sure your NHS costs will stack-up, aren't most emigrants (over 2 million I think) from the UK at the retired end of the spectrum rather than the working end. The incomers, although at net gain are young and hopefully reasonably healthy and working and therefore paying NI and tax which those leaving don't do. So it's unclear as far as I'm concerned whether long term the situation for the NHS is bad purely because of people arriving in the UK. According to government statistics mid-2015 61% of EU citizens immigrating for work had a definite job to go to presumably one that a UK citizen wasn't prepared to do; meaning that about 200K of the immigrants started working and paying into the system on arrival. For non-EU immigration, presumably controlled? Immigration for work by non-EU citizens rose from 48,000 to 64,000. As an aside several ex-pats of my aquaintence use both the NHS and French health care systems; probably the same ones who drive UK registered SORN and untaxed unMOT'd cars in France.

The rest of your calculations are probably right although one has to taken into account the "wealth" generated by immigrants.