Enviroment Problem

Pollution to the environment is worrying and every day we realize that our planet has changed.

Human beings do not realize that we are causing irreparable damage to our paneta, consientizar demos and more concerned by the caontaminacion and we avoid it and try at least a little planet.

The nuclear power debate 

Proponents of nuclear energy argue that nuclear power is a sustainable energy source which reduces carbon emissions and can increase energy security if its use supplants a dependence on imported fuels. 

Proponents advance the notion that nuclear power produces virtually no air pollution, in contrast to the chief viable alternative of fossil fuel. Proponents also believe that nuclear power is the only viable course to achieve energy independence for most Western countries.

They emphasize that the risks of storing waste are small and can be further reduced by using the latest technology in newer reactors, and the operational safety record in the Western world is excellent when compared to the other major kinds of power plants.

Opponents say that nuclear power poses numerous threats to people and the environment and point to studies in the literature that question if it will ever be a sustainable energy source. These threats include health risks and environmental damage from uranium mining, processing and transport, the risk of nuclear weapons proliferation or sabotage, and the unsolved problem of radioactive nuclear waste.

They also contend that reactors themselves are enormously complex machines where many things can and do go wrong, and there have been many serious nuclear accidents.

Critics do not believe that these risks can be reduced through new technology.[1 They argue that when all the energy-intensive stages of the nuclear fuel chain are considered, from uranium mining to nuclear decommissioning, nuclear power is not a low-carbon electricity source.

Intensive farming or intensive agriculture 

Agricultural production system characterized by a low fallow ratio and the high use of inputs such as capital, labour, or heavy use of pesticides and chemical fertilizers relative to land area.

This is in contrast to many sorts of traditional agriculture in which the inputs per unit land are lower. With intensification, energy use typically goes up, initially provided by humans, then supplemented with animals, and supplemented or replaced with machines. Agricultural intensification has been the dominant response to population growth, as it allows for producing more food on the same amount of land.

Intensive animal farming practices can involve very large numbers of animals raised on limited land which require large amounts of food, water and medical inputs.Very large or confined indoor intensive livestock operations (particularly descriptive of common US farming practices) are often referred to as factory farming and are criticised by opponents for the low level of animal welfare standards and associated pollution and health issues.

Modern day forms of intensive crop based agriculture involve the use of mechanical ploughing, chemical fertilizers, plant growth regulators or pesticides. It is associated with the increasing use of agricultural mechanization, which has enabled a substantial increase in production, yet has also dramatically increased environmental pollution by increasing erosion and poisoning water with agricultural chemicals.

The methods of modern intensive farming include innovation in agricultural machinery and farming methods, genetic technology, techniques for achieving economies of scale in production, the creation of new markets for consumption, the application of patentprotection to genetic information, and global trade. These methods are widespread in developed nations and increasingly prevalent worldwide. Most of the meat, dairy, eggs, fruits, and vegetables available in supermarkets are produced using these methods of industrial agriculture.

Pollution 

Introduction of contaminants into the natural environment that cause adverse change.Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution.

Water pollution

Contamination of water bodies. Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.

Water pollution affects plants and organisms living in these bodies of water. In almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.

Air pollution 

Introduction of chemicals, particulates, biological materials, or other harmful materials into the Earth's atmosphere, possibly causing disease, death to humans, damage to other living organisms such as food crops, or the natural orbuilt environment.

The atmosphere is a complex natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems.

Indoor air pollution and urban air quality are listed as two of the world’s worst toxic pollution problems in the 2008 Blacksmith Institute World's Worst Polluted Places report.

 A reservoir is a natural or artificial lake, storage pond or impoundmentfrom a dam which is used to store water. Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.

The term reservoir may also be used to describe naturally occurring underground reservoirs such as those beneath an oil or water well.

A toxin is a poisonous substance produced within living cells or organisms synthetic substances created by artificial processes are thus excluded. The term was first used by organic chemist Ludwig Brieger.

Toxins can be small molecules, peptides, or proteins that are capable of causing disease on contact with or absorption by body tissues interacting with biological macromolecules such as enzymes or cellular receptors. Toxins vary greatly in their severity, ranging from usually minor and acute to almost immediately deadly .

Waste(s) is a pejorative term for unwanted materials. The term can be described as subjective and inaccurate because waste to one person is not waste to another.

Environmental degradation 

Deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems and the extinction of wildlife. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable.As indicated by the I=PAT equation, environmental impact  or degradation is caused by the combination of an already very large and increasing human population, continually increasing economic growth or per capita affluence, and the application of resource depleting and polluting technology.

Environmental degradation is one of the Ten Threats officially cautioned by the High Level Threat Panel of the United Nations. The United Nations International Strategy for Disaster Reduction defines environmental degradation as “The reduction of the capacity of the environment to meet social and ecological objectives, and needs”. Environmental degradation is of many types. When natural habitats are destroyed or natural resources are depleted, the environment is degraded. Efforts to counteract this problem include environmental protection and environmental resources management.

Genetic engineering

Also called genetic modification is the direct manipulation of an organism's genome using biotechnology NewDNA may be inserted in the host genome by first isolating and copying the genetic material of interest using molecular cloning methods to generate a DNA sequence, or by synthesizing the DNA, and then inserting this construct into the host organism. Genes may be removed, or "knocked out", using a nuclease. Gene targeting is a different technique that uses homologous recombination to change an endogenous gene, and can be used to delete a gene, remove exons add a gene, or introduce point mutation

Conservation

Ethic of resource use, allocation, and protection. Its primary focus is upon maintaining the health of the natural world, its fisheries, habitats, and biological diversity. Secondary focus is on materials conservation and energy conservation, which are seen as important to protect the natural world. Those who follow the conservation ethic and, especially, those who advocate or work toward conservation goals are termed conservationists.

Enviroment problems

Climate change

Significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions, or in the distribution of weather around the average conditions.

Climate change is caused by factors such as biotic processes, variations in solar radition received by Earth, plate tectocnic and volcanic eruptions. 

Certain human activities have also been identified as significant causes of recent climate change, often referred to as global warming