Europe: A Natural History
Europe is home to more than 700 million people, most of them city dwellers. Much of its wildlife has suffered as a result, but efforts are underway to protect and reintroduce some species. Others have exploited new opportunities offered by man-made environments. In Rome, the first metropolis on the continent, winter tourists watch swirling clouds of starlings flocking over the city. Buildings and structures have replaced caves and cliffs as preferred perches and nest sites for some birds, including kestrels and white storks. On a nearby landfill site, griffon vultures and red foxes forage and scavenge food. Wildlife and people are coming into contact more often. Joggers in the woods around Budapest often encounter wild boars, while farmers in the Carpathian Mountains live alongside Europe's biggest populations of bear, wolf and lynx. These predators were hunted to extinction in Western Europe, but are now returning, aided by green corridors such as the European Green Belt and wildlife-friendly development. Beavers have also returned in large numbers due to protection and the clean-up of Europe's polluted rivers. A chemical spill in the 1960s killed all the fish in the Rhine, but now there is a project to reintroduce Atlantic salmon to the river. There are, however, new dangers. Invasive species such as Chinese mitten crabs, Asian long-horned beetles and Japanese knotweed threaten the native flora and fauna. Climate change could also have a dramatic effect on the continent, but Europe's natural history has experienced many such changes in the past.
Poles
Polish people are the sixth largest national group in the European Union. Estimates vary depending on source, though available data suggest a total number of around 60 million people worldwide (with roughly 21 million living outside of Poland, many of whom are not of Polish ethnicity, but Polish nationals). There are almost 38 million Poles in Poland alone. There are also Polish minorities in the surrounding countries including (Germany), and indigenous minorities in the Czech Republic, Hungary, Slovakia, northern and eastern Lithuania, western Ukraine, and western Belarus. There are some smaller indigenous minorities in nearby countries such as Moldova. There is also a Polish minority in Russia which includes indigenous Poles as well as those forcibly deported during and after World War II; the total number of Poles in what was the former Soviet Union is estimated at up to 3 million.