Ecology and Environment

INTRODUCTION

INTRODUCTION

The problems related to the environment, do not respect territories, borders, languages, economic or social status, political preferences etc.

Introduction

Ecology, environment and sustainable development, are designed to ensure the present and future generations, a quality of life that responds to the legitimate aspirations of the population (employment, housing, education, justice, power, freedom and means suitable for development) environment.

Ecology

Ecology deals with the scientific study of the interrelationships between organisms and their environments, and therefore the physical and biological factors that influence these relations and are influenced by them.

Environment

Environment is everything that surrounds us and we must take care to keep our city, school, home, etc., in short everything where we can be clean.

Sustainable development

Concept created in 1987 by the report "Our Common Future" and is defined as development that meets the needs of the present population without it impossible to meet the needs of the future population.

ENVIRONMENTAL PROBLEMS THAT AFFECT ALL

The source of the problems

In the recent past the misconception that nature could automatically cleaned had of everything the man to (pollution of air, water and soil) and if the trees were cut and animal species were removed, they would return To appear.

Man and Nature

The man from appearing on the face of the Earth, has always made use of nature to meet their needs (eating, dressing and protect different climates). In its aim of achieving economic growth, however it has damaged large tracts of land and has generated multiple ecological imbalances.

Serious Environmental Problems

The main environmental problem we face as humanity is GLOBAL WARMING, a phenomenon identified as one of the biggest imbalances generated by man.

Global warming effects

Global warming causes an increase in the temperature of the planet, which has a direct impact on all ecosystems in the world, causing the melting icecaps, alter the habitat of many aquatic species and generates serious alterations to the climate.

As global warming causes

Terrestrial and marine plants remove from the atmosphere large amounts of carbon dioxide. This is produced by several sources: the respiration of living beings, destruction and fermentation of organic substances, burning oil, coal, wood or other fuels containing carbon in its composition.

Global warming

You know these gases CO2 CH4

The problem

The proportion of CO2 in the air must be constant, although in the last 15 years have shown that human activity has increased the proportion (ppmv to 380 ppmv 270 = 40%). If the trend continues it is estimated that by 2020 the amount of CO2 will have doubled.

That affect us? The greenhouse effect is a

natural condition of the atmosphere of the earth. Some gases such as water vapor, carbon dioxide (CO2) and methane are called greenhouse gases, because they trap the sun's heat in the lower layers of the atmosphere. Without them, our planet would freeze and nothing could live.

That affect us? As the planet warms, the ice caps

melt. Besides the sun's heat when it reaches the poles, it is reflected back into space. The melting of the polar ice caps, the lower the amount of heat that is reflected, which will cause the earth to warm even more. Global warming will also cause more water to evaporate from the oceans. The steam acts as a greenhouse gas. Thus, there will be further warming.

Acid rain Because air pollution

rain, snow, frost, fog and dust occurs with an abnormal degree of acidity. This is the most common form of trans-border air pollution kills fish, plants and trees in lakes, rivers and forests.

Response to Environmental Problems

Given all these problems, the United Nations Organization has made several international efforts.

HOW TO CONTRIBUTE IN OUR SOCIETY ROLE

Activities we can make Use less our car and public

transportation, bicycle or just walking our walk;

Do not waste any energy, that is, turn off the lights, radio and tv you're not using; take shorter showers and not leave the hot water running;

Recycle glass, plastic and paper.

THANK YOU.