Environmental changes

due to human activities, our climate and environment is changing day by day which is causing many big problems

1. WELCOME

2. TOPIC- ENVIRONMENTAL CHANGES

3. WHAT ARE ENVIRONMENTAL CHANGES Environmental change is defined as the change or disturbance of the environment caused by human influences or natural ecological processes. Environmental change includes a number of things like natural disasters, human interference and animal interaction. ?

4. CAUSES OF ENVIRONMENTAL CHANGES Environmental changes occur in a number of ways like- Pollution Deforestation Volcanic Eruption Global Warming

5. DEFORESTATION Deforestation  is the permanent destruction of forests in order to make the land available for other uses like farming construction of buildings factories, houses, etc.. An estimated 18 million acres (7.3 million hectares) of forest are lost each year.

6. GLOBAL WARMING Global Warming is the increase of Earth's surface temperature due to greenhouse gases, such as carbon dioxide emissions from burning fossil fuels, which trap heat that would otherwise escape from Earth.

7. Some International Conventions On Environment CBD -Convention on Biological Diversity UNFCCC -United Nations Framework Convention on Climate Change UNCCD -The United Nations Convention to Combat Desertification Ramsar Convention on Wetlands Convention on Conservation of Migratory Species of Wild Animals

8. SIMPLE WAYS TO CONTROL ENVIRONMENTAL CHANGES Try to walk or use bicycle instead of cars. Use compact fluorescents or  LEDs instead of light bulbs. Use renewable sources of energy. Buy organic food, not frozen food . Decompose the kitchen waste . Reduce the use of flying vehicles as much as possible

9. The Environment Agency is a non-departmental public body. It was established in 1996. Its stated purpose is, "to protect or enhance the environment, taken as a whole" so as to promote "the objective of achieving sustainable development ". The vision of the Agency is of "a rich, healthy and diverse environment for present and future generations".

10. Environment Protection Act, 1986 is an Act of the Parliament of India enacted under Article 253 of the Constitution. It came into force on 19th November 1986. The purpose of the Act is to implement the decisions of the United Nations Conference on the Human Environments .

11. IMPACT OF ENVIRONMENTAL CHANGES ON FARMING Sudden change in temperature and rainfall affects crop production Environmental changes decrease the fertility of soil, thus, reducing crop yield Untimely rains cause drought which destroys the crop Relief features like plains and mountains also get changed with environment which has adverse effect on crops

12. CHANGES IN WHEAT PRODUCTION A Case Study One-third of India’s wheat production comes from U.P. But a great loss of crops occurred there due to rise of temperature. This forced many farmers to commit suicide. The rise of temperature of only 1 o C can decrease crop yield by 6% . Worldwide, 6% of total wheat production means 42 million tonnes , which gets lost due to environmental changes .

13. WHEAT PRODUCTION IN INDIA YEAR WHEAT PRODUCTION 1960 10320 1965 12258 1975 24104 1985 44069 1995 65470 2005 68640 2014 95850

14. IMPORT AND EXPORT OF WHEAT

15. IMPORT AND EXPORT OF WHEAT YEAR IMPORT 1960 4398 1965 7157 1975 6900 1985 50 1995 50 2005 41 2014 45 YEAR EXPORT 1960 1965 1975 1985 400 1995 1500 2005 801 2014 3500

16. Wastage Of Wheat Production In India, 21 million tonnes of wheat, which is equal to the entire production of Australia, is lost every year. Globally, 4 billion tonnes of food is produced out of which 30-50 per cent (1.2-2 billion tonnes) is wasted, whereas 6 billion people can feed on 2-2.8 billion tonnes of food.

17. Causes Of Wastage Of Wheat Poor Engineering Poor Agricultural Practices Poor Harvesting Methods Inadequate Transport Inadequate Storage Poor Distribution System Very High Temperatures Rodents

18. PREPARED BY- RAHUL SINGLA ROLL NO- 30 CLASS- 9TH B-1