Yes, I believe so. It's supposed to be stored cold and under pressure, probably to prevent what you describe. I'll get back to your question about immigrants further down, but first, I would like to address Skiara's final question. I have made some minor modifications in my prior answers where I've encountered errors or where I've felt the need for some elaboration. The post I've changed the most since first posting it is this one. 3. The image of the Nordic countries and their environment protection, although there are different things in the news rarely. How is it from your point of view? Well, Norway is a mixed bag when it comes to environmental sustainability. On the one hand, we only have 4-5 fossil fuel-driven electricity plants in the country, run by gas (as in actual gas, not short for gasoline). Most of our electricity is provided by hydroelectric dams. There are also some powered by the heat from waste disposal incinerators. Waste has to be burned anyway, so why waste the heat? On the other hand, we are one of the largest exporters of oil and gas, and the revenues from that sector are what enables our standard of living and welfare state. This is not the only uneasy dichotomy of Norway. We hand out the Nobel Peace Prize, but are munitions exporters. We have signed a treaty banning ourselves from using cluster bombs, but manufacture and sell them to countries that have not bound themselves to such a commitment. We exceed the bounds of emissions limitation agreements we have agreed to abide by, but that's fine because we pay our way out by buying larger 'emissions quotas'. This is in reference to the Kyoto agreement, I think, but don't quote me on it. Our government is also exploring further regions offshore for oil and gas drilling; both off the coast of the Lofoten islands in the north, and in the Arctic, in a scramble against the US, Canada and Russia. We don't have that many wind turbines. We for some reason believe them to be an unacceptable sullying of our natural scenery. But not everywhere is the Hardanger fjord, and a lot of other countries have decided to use them without feeling this way, such as our own Scandinavian neighbours. That is a shame, because although hydroelectric dams are clean in terms of emissions, they also disrupt the natural ecosystems of the areas behind and ahead of the dams. People should be more open to the idea of wind power. And, given that Norway is blessed with such a long shoreline, not all of it has to be on land. Wind farms can be built offshore. Even the waves themselves can be exploited for energy the same way rivers are exploited in dams. For now, though, there is seemingly no need to make any further measures. We produce a surplus of electricity, such that we even export to neighbouring power grids. Something I'm particularly pleased about is that because of tax policies incentivising ownership of electric cars, we have the largest per capita ownership of electric vehicles of any country in the world. Mind you, it's not that the government subsidises electric vehicles. Rather, regular vehicles are taxed so highly that electric vehicles, which anywhere else in the world are more expensive than their combustion engine counterparts, end up in price parity here, because they are tax free. The salmon in the Norwegian Sea used to be endangered due to overfishing, but now we have fish culture farms where they are bred. In sum, some good, some bad. But I think on the whole Norwegians are a bit too satisfied with themselves. Many of us think we somehow are a beacon of environmental sustainability, which is clearly not true. We could certainly improve. Can you please tell us about immigrant communities in Norway and how they influence the local culture? Well, Norway has too small of a population, and likewise Oslo is too small a city, to have distinct neighbourhoods dominated by one ethnicity like Chinatown or Little Italy, the way one finds in the US and other places. By far the greatest concentration of immigrant communities is in and around the capital. This is, however, not unique to immigrants. Although Norway's population is relatively well decentralised, about half of the population lives within a two hour drive from Oslo, and the general trend is people leaving the countryside for the cities. Technically, Swedes, Danes and Finns are the oldest immigrant communities in Norway, and in a sense they are invisible immigrant populations because you can't tell by appearance that they're foreigners and they're practically the same in a cultural sense. That said, Finns, who mainly came to Norway during the famine of the 1860s, used to face discrimination and ridicule in the past, as did the Sámi, but the influx of more distant immigrants in the early 1970s changed that. I've even heard from northerners that the influx of migrant workers in the 1970s and 80s saved their reputation and made them more accepted among southerners. You would find vacancy posters in Oslo, for example, that would state "northerners need not apply". And this was not just referring to the Sámi, but even to ethnic Norwegians that were from the north. It seems everywhere in the world, prejudice is relative. There's always a new group to retroactively make the previously maligned group accepted. The post-war boom led to a need for guest workers, and beginning in the late 1960s, Norway announced that it was open for foreign labour. I think the prevailing assumption among politicians at the time was that these would work for a while to save up money and send back home, and then return. But they mainly stayed and established new lives in Norway. Among these first waves of non-Nordic immigrants were Turks, Moroccans and Pakistanis. Turks and Moroccans would turn out to favour Germany and the Francophone world, respectively, and therefore their influx to Norway was not that large. But Pakistanis soon became the indelible image of immigrants in Norway. By 1975, the need for guest workers was fulfilled, and work migration was stopped. So, since then the immigration policy effectively shifted to one of only accepting refuge immigration. However, Vietnamese refugees kept coming, and were also among the early immigrants to Norway. The number of immigrants taken each year have varied depending on world events and migration waves, but in the last two decades the policy has generally been not to admit any more than we absolutely must under UN obligation. During all of the 1970s, 80s and 90s, the image of an immigrant in the Norwegian consciousness would first and foremost be that of a Pakistani or a Vietnamese. In the 1990s, refugees from the wars in Somalia, Bosnia & Herzegovina and later Kosovo saw waves of immigrants from these regions, and the wars in Afghanistan and Iraq in the 2000s led to a massive influx from these two countries, particularly Iraq. All the while, since the EU's adoption of the Schengen area free flow of labour, workers from the continent have come and gone. When Poland and the Baltic states joined the union in 2004, work immigration from these countries took off in much of Europe. In Norway, Polish immigrants now outnumber the Pakistani community. They often work in construction. The refugees and workers from Eastern Europe have significantly changed the makeup of the immigrant population in recent decades. Today, the largest immigrant communities are from Poland and the Baltics. Scandinavians remain the second largest group. Particularly in the years after the 2008 financial crisis, it was very lucrative for young college age Swedes to work in Norway for a year or two to save up money. The Norwegian currency was very favourable against the Swedish Krona for a while. For about 3-4 years after 2008, it seemed that all restaurant and retail staff in Oslo consisted of Swedes. Since these were so often young, attractive, party-loving people, "party Swede" became a colloquial term. Pakistanis and Vietnamese originally came in such large numbers and have since grown, that they remain the largest non-EU communities if you count third generation children. Somalis, Iraqis and Afghans are the largest communities of the newer arrivals. Refugees of the Balkan wars (Bosnia, Kosovo, Albania), Iranians and Turks (of which half are Kurds) are smaller groups. Another statistically significant group are so called "import wives" from Thailand and the Philippines. Enough men marry women from these two countries to make them among the largest statistical immigrant populations.