European Journal of Social Behaviour 1 (1): 10-13, 2014 10 Environment-Crisis and Human Activity Konstantinos Kalachanis 1 Abstract: Our attitude towards the Environment has been changed since Industrial Revolution because our civilization is characterized by the overconsumption of natural resources, resulting in the appearance on health problems, while millions of people have also condemned into poverty. In order to change this harmful model of economy, we need to change our way of thinking by realizing our unity with the Environment. In such a case, it is obvious that a new model of economic growth will arise, which is based on Sustainable Development. This type of development combines the protection of natural environment with the improvement of quality of life, especially for poorer countries whose population suffers from poverty. Keywords: environment, human activity, sustainable development Acknowledgement: This reflection presents personal views of the author. It is a modified version of a paper presented at Aegean Research Centre’s First Panhellenic Conference on Crisis and Everyday Life, which was held October 16-17, 2014 in Aegean College, Athens, Greece. The main advantage that nature has given to human beings is their ability not just to survive, but to adjust their environment in their needs. Thus, humans used their ability in order to create civilizations and become able to construct everything they needed in order to make their life better. This paper aims at describing the main consequences of this activity in human health, pertaining to the results of the overconsumption of natural resources. It will also be examined the need of a new model of economic growth, known as Sustainable Development, which combines environmental protection and economic profit. Environmental impacts on Health A basic parameter of the relation that humans develop with their Environment is not just to survive through the use of natural resources, but their aiming on economic growth. Especially in 18th and 19 th century, when the transition from traditional handiwork to the machines took place, immediately emerged the need for more energy. 1 Phd in Philosophy, Research Associate, University of Athens, Faculty of Physics, Department of Astrophysics-Astronomy-Mechanics. Email: kkalachan@phys.uoa.gr