Pollution?

Chemicals we use every day on our crops or in our homes to kill unwanted pests and weeds can also harm or even kill other plant and animals species. Pesticides are often misused, used incorrectly, or used over too large an area. But even if used correctly, many cannot tell the difference between a pest and a friendly species. For example, some pesticides used on crops can harm the bees and other insects needed to pollinate these same crops. In addition, many chemicals have long lives and do not break down easily. They can "bioaccumulate" in food webs—as birds eat bugs, and larger animals eat birds, more and more harmful chemicals accumulate in the tissues of each animal in the food chain. Not only are species harmed themselves, but the foods they eat are also harmed.

Global Climate Change?

As humans burn more fossil fuels like oil and coal for energy, more carbon dioxide enters the atmosphere. Carbon dioxide acts like a greenhouse, letting sunlight and heat into the lower atmosphere, but not letting them back out. Other gases, including methane and nitrous oxide, released into the atmosphere due to human activities also contribute to global warming. As a result, average yearly temperatures on Earth have risen

Climate changes will alter the ecosystems in which many species—including humans—live. If a species requires a certain temperature or certain amount of water to live, it could face extinction if global climate change alters its environment. Other species—such as mosquitoes, certain diseases, and some pests—may flourish and expand their ranges.

What is biodiversity?

Biodiversity, short for "biological diversity," refers to the variety of life on Earth. There are many levels of diversity—from DNA and genes to species, populations, ecosystems, and communities.

Biodiversity

BIO_DIVERSITY QUESTIONS

What is biodiversity?

Genitic biodiversty?

Species Biodiversity?

Ecosystem Bodiversity?

Where is most of the biodiversity of the Earth located?

What are the threats to biodiversity?

Habitat Fragmentation and Degradation?

Global Climate Change?
(Threats to biodiversity)

Pollution ?(Threats to Bio-diversity,contd)

Environmental studies

SAVE NATURE

Environmental studies is the systematic study of human interaction with their environment. It is a broad field of study that includes the natural environment, built environments, social environments, organizational environments, and the sets of relationships between them.Environmental studies is distinct from ecology and environmental science.

Current environmental problems have evolved into a complex set of interdisciplinary issues involving ecological, political, economic, social, as well as physical and biological considerations. Modern environmental studies must include the study of the urban environment as well as the natural environment.


Friends these studies are just for saving our Mother nature and our future.
[This post is taken from wiki to introduce about environmental studies].