Romania Clasa a XI-a Geography: Fundamental Problems of Today's World
Chapters: 5
1. Environment – a key problem of today's world
Environment and geo-ecological factors · Environments and landscapes · Hazards and human impact · Environmental protection
- Environmental Issues: Causes, Effects and Solutions – Environmental issues are harmful changes to air, water, land, climate and living things, mostly caused by human activity. The big ones are air pollution, water pollution, land pollution and waste, climate change, deforestation and loss of biodiversity, and overuse of resources. They grow with the number of people and how much each person uses (the ecological footprint). We can reduce them with clean energy, saving and recycling, treating waste water, protecting forests and good laws, at home, in the city, in the country and across the world.
- Climate Zones of the World – Climate is the average weather of a place over about 30 years. It depends mainly on latitude (how high the Sun climbs), altitude (about 6.5 °C cooler per km up), distance from the sea, winds and ocean currents. Using these, the Köppen system sorts the world into five groups: A tropical, B dry, C temperate, D continental and E polar, plus highland climates on high mountains. Monsoon climates have winds that change direction with the seasons.
- Natural Hazards – A natural hazard is a natural event that can harm people and property, such as an earthquake, volcano, landslide, flood, drought or cyclone. It becomes a disaster when it hits people who are not ready. Geological hazards come from inside the Earth; meteorological (weather) hazards come from the air and water. Risk = hazard × vulnerability ÷ capacity to cope, so warning systems, strong buildings and trained people cut the damage.
2. Regionalisation and globalisation
Regionalisation and globalisation
- The Making of a Global World – People, goods, ideas and germs have moved across the world for thousands of years: on the silk routes, with food crops like potato and maize, and with diseases like smallpox. Between 1815 and 1914 the world economy grew through three flows: goods, labour and capital, helped by railways, steamships and refrigerated ships. Colonies paid a price: rinderpest in Africa and indentured labour from India. After the First World War came mass production in the USA and then the Great Depression of 1929, which hit India's farmers hard. After 1945, the Bretton Woods system, the IMF and the World Bank rebuilt the world economy.
3. Population, resources and development
Population and development · Resources and sustainability
- The Demographic Structure of Indian Society – Demography is the study of population: its size, how it grows, and who is in it (age, sex, place). Malthus said population grows faster than food, so hunger checks it. The theory of demographic transition says societies move from high birth and death rates, through a population explosion when deaths fall first, to low birth and death rates. Key measures are birth rate, death rate, growth rate, fertility rate, infant and maternal mortality, life expectancy, sex ratio and dependency ratio. India has a young population, which can be a demographic dividend if the young get jobs and skills. India's falling child sex ratio is a warning sign. Villages and cities are linked by migration, trade and media, yet divided by jobs, services and income. India's population policy moved from family planning (1952) through forced sterilisation in the Emergency to the National Population Policy 2000, which stresses health, education and choice.
- The World Population: Distribution, Density and Growth – People are not spread evenly on Earth. Most live on fertile plains near water; few live in deserts, high mountains or icy lands. Density tells how many people live on each square km. Geographical, economic and social factors explain the pattern. The world grew slowly for thousands of years and then very fast after 1800. Population changes through births, deaths and migration. The demographic transition theory shows how birth and death rates fall as a society moves from rural farming to urban industry. Countries use family planning and health care to control growth.
- Environment and Sustainable Development – The environment gives us resources, soaks up our waste, supports life and gives beauty. When we take resources faster than nature renews them, or throw waste faster than it can absorb, we cross its carrying capacity and face an environmental crisis. India faces land degradation, air and water pollution, forest and biodiversity loss. Burning fossil fuels traps heat and causes global warming; CFCs thin the ozone layer. Sustainable development meets today's needs without harming the ability of future generations to meet theirs, using clean energy, less waste and traditional knowledge.
4. World economic and geopolitical system
World economy · Geopolitical system and groupings
- The Making of a Global World – People, goods, ideas and germs have moved across the world for thousands of years: on the silk routes, with food crops like potato and maize, and with diseases like smallpox. Between 1815 and 1914 the world economy grew through three flows: goods, labour and capital, helped by railways, steamships and refrigerated ships. Colonies paid a price: rinderpest in Africa and indentured labour from India. After the First World War came mass production in the USA and then the Great Depression of 1929, which hit India's farmers hard. After 1945, the Bretton Woods system, the IMF and the World Bank rebuilt the world economy.
5. Social and cultural geography (social sciences)
Social geography · Cultural geography
- Social Geography: How People Live in Different Places – Social geography studies how people, their culture and their living conditions are spread across places, and why. Regions differ in traditions (ethnographic or cultural regions), in living standards (income, health, education, housing), and in fertility (births per woman). Villages often lose people as young adults move to cities for jobs (rural depopulation), so village and city life change in different ways. Inside cities people can end up grouped by income or origin, which may produce segregated, deprived districts (ghettoisation). Every city also has its own character, the genius loci. Geographers use GIS maps to show patterns such as voting turnout, and public participation helps people shape their place. Some regions stay poor and need social solidarity, for example support from richer regions. Work and tolerance are also central: child labour and low-cost labour, unemployment (especially among young people), and racism and xenophobia, which can be countered by education, fair laws and contact between groups.