Human Impact on the Environment and Spanish Policy

Human Impact on the Environment

Air Pollution and Atmospheric Issues: Acid rain consists of sulfuric and nitric acids that fall with rainwater to the surface, causing changes in vegetation, water, soil, and buildings. The ozone layer thickness has decreased due to aerosols and refrigerants, which affects plants, animals, and humans by increasing skin cancer and cataracts. The greenhouse effect is caused by the emission of gases like methane and CO2 into the atmosphere; they let in sunlight but retain heat within the Earth, preventing it from escaping. The consequences include an increase in the temperature of the Earth and climate changes such as droughts and floods. A pollution hood and smog during winter anticyclones produce alterations in plants and buildings, and cause pulmonary diseases. Furthermore, noise from traffic, industrial emissions, and urban settlements contributes to environmental degradation.

Deforestation and Vegetation Loss

Agriculture and livestock industries have plowed forests that have been allocated to crops or livestock grazing. Urban occupation, industrial facilities, and forest fires also contribute to the loss of natural vegetation.

Soil Pollution, Erosion, and Desertification

Soil pollution is caused by industrial and urban waste. Soil erosion is accentuated by steep slopes and human activities such as deforestation and overgrazing, particularly in regions like Murcia, Aragon, and Andalusia. Desertification is the final result of extreme erosion.

Water Overexploitation and Pollution

Overexploitation is the result of increased water consumption, which has pushed for the construction of hydraulic systems for water capture and regularization. This overexploitation of aquifers causes total or partial desiccation. Water pollution occurs through various channels:

• Rural activities: Cleaning stables and the misuse of fertilizers.
• Industrial discharges: Untreated waste released into rivers and seas, including oil spills and accidental leakages that damage water quality, people, and coasts.
• Urban pollution: Discharges of untreated sewage and garbage thrown into landfill sites.

Municipal Solid Waste Management

In the Mediterranean area, lower river flows result in higher pollution concentrations, with only 40% of waste being effectively managed.

Spanish Environmental Policy

Atmospheric Protection

To combat acid rain, policies aim to reduce sulfur emissions. To protect the ozone layer, the production, marketing, and use of CFC gases are prohibited. Against the greenhouse effect, measures include controlling vehicle CO2 emissions and promoting energy savings. To address the pollution hood, public transport and energy efficiency are promoted. A noise bill has been introduced to combat noise pollution.

Nature Conservation and Land Recovery

Forest Conservation: Conservation programs focus on energy resources, endangered species, and the prevention of pests and fires, alongside increased afforestation efforts.

Soil Recovery: There is a national plan for the recovery of contaminated soil in regions such as Asturias and Sabiñánigo.

Water Management and Waste

Water Management: Policies include purification infrastructure and water control monitored by SAICA. Plans are in place to control erosion, prevent flooding, and upgrade shores, integrating rivers into a sound urban environment. This includes the sustainable use of aquifers, the protection of wetlands, and projects for prevention and cost recovery.

Waste Management: Strategies focus on reducing, recovering, and recycling waste. This includes producing biogas and compost, and recycling paper, glass, batteries, and tires.