Title : Climatic changes and forest trees and shrubs adaptation in the future time
Abstract:
The earth planet, the environment and the different forms of life have had a close relationship at every stage of human development, they have such correlations so significant that in these last decades there is talk of very real mutual influences between the binomial planet/environment - and life forms, life communities. Many living organisms have such strong connections with the environment that their existence cannot be understood without specific conditions for certain species or populations. And depending on these individual conditions, populations, living organisms, have sometimes increased and decreased throughout the globe. But, it is the human species, which has only had increases in frightening progression from decade to decade, from century to century, regardless of the fact that there have been natural or human disasters such as diseases and wars. So, when the world was at the acceptable limits of some unpleasant environmental phenomena, the human population had a greater need for the use of resources and began to use the techniques of various technologies for the use of resources, which were bringing more and more significant negative impacts on the environment. Thus began phenomena such as soil, air, water pollution, such phenomena in the atmosphere that have to do with the ozone layer, up to heavy pollution in the form of smog or acid rain, threat of rare species or ecosystems, finally to global warming, are mostly attributed to human activities. There are many factors that have been influential in the appearance of these phenomena, but the increase in population, the use of natural resources and the technology used are considered to be the main factors in the appearance of these phenomena. A worldwide overpopulation is still observed in extremes, from a few thousand individuals about 200,000 years ago, in 1880 we passed 1 billion, and in 1999 we reached 6 billion. One estimate puts the world's population at 7.7 billion in 2019, and projections predict it will reach 8.5 billion in 2030, 9.7 billion in 2050, and 10.9 billion in 2100. But, apart from the fact that we have an increase in the number of people from year to year, at the same time more and more, the world is getting more and more urbanized, and this especially at the end of the century we passed and continues with high intensity towards the century we are in. Around the 1980s worldwide, almost 50% of the population lived in urban areas in cities/towns, and this urban population figure is projected to reach about 70% by the 2050s.
