Causas y consecuencias del cambio climático
Understanding Climate Change and Its Impacts
What is Climate Change?
- Climate change refers to significant alterations in temperature and weather patterns over time. It has become a common topic in social media and news outlets.
- The causes of climate change can be divided into natural factors (like Earth's gas cycles) and anthropogenic factors, primarily greenhouse gases emitted by human activities.
Acceleration of Temperature Increase
- Historically, Earth's temperature varied naturally over hundreds of thousands to millions of years; however, the current rate of change correlates with industrialization over the last 150 years.
- Human activities are responsible for an accelerated increase in global temperatures due to higher concentrations of greenhouse gases in the atmosphere.
Sources of Greenhouse Gas Emissions
- Major contributors to greenhouse gas emissions include:
- Electricity generation through combustion
- Heating via combustion
- Agriculture and livestock farming
- Land use changes
- Transportation
- Industrialization and construction processes
Consequences of Rising Temperatures
- The rise in Earth’s temperature leads to several critical consequences:
- Changes in ecosystems and desertification
- Ocean acidification
- Extinction of species
- Increased frequency and intensity of extreme weather events (e.g., droughts, heatwaves, heavy rainfall)
- Melting ice caps resulting in rising sea levels (approximately 17 mm per year), leading to flooding and other disasters like landslides or tornadoes.
Chile's Vulnerability to Climate Change
Chile's Geographic Context
- Chile is one of the longest countries globally, stretching over 4,300 kilometers with a population nearing 19.5 million as of 2020. Despite contributing only about 0.26% to global greenhouse gas emissions, its emissions have increased by approximately 40% over the past two decades.
Risk Factors for Chile
- According to the Global Climate Risk Index (2017), Chile ranks among the top ten most vulnerable countries regarding climate change due to various risk factors:
- Low coastal areas prone to flooding
- Forested regions susceptible to degradation
- Areas facing drought and desertification
- High atmospheric pollution zones
- Mountainous ecosystems at risk from climate impacts
Sustainable Development Goals (SDGs)
Introduction to SDGs
- In response to these challenges, the UN adopted the Agenda for Sustainable Development in 2015 aimed at improving lives without leaving anyone behind.
- This agenda includes 17 Sustainable Development Goals that require collective action from governments, private sectors, civil society, and individuals alike.
Definition & Importance
- Sustainable development is defined as meeting present needs without compromising future generations' ability to meet their own needs.
Corporate Responsibility Towards Sustainability
Commitment by Companies
- Companies are encouraged to integrate SDGs into their daily operations:
- A commitment was made by a company aiming for an 80% reduction in greenhouse gas emissions per kilowatt-hour globally by 2030.
- Leading efforts towards energy transition involves transforming how energy is generated and consumed.
Actions Taken
- Closure commitments on coal plants: Three coal plants were scheduled for closure between December 2019 and May 2022.
- Investment in renewable energy sources such as wind power, solar power, and geothermal energy.
- Initiatives promoting electric public transport systems including electric buses along with infrastructure development for electric vehicle charging stations across Santiago.
These actions position companies as leaders within clean energy sectors while aligning with international climate agreements like those established during COP meetings or Paris Agreements.
Impact on Electrical Distribution Systems
Effects on Infrastructure
- Climate change poses risks that could affect electrical supply systems due to increasingly extreme conditions compared with previous times.
Response Strategies
- Continuous optimization efforts are necessary for distribution networks ensuring quality service delivery amidst changing environmental conditions.
- Implementation since 2018 includes terrestrial inspections using drones alongside aerial inspections aimed at early detection of potential network failures ensuring reliability amidst climatic challenges faced today.
Technological Advancements in Electrical Infrastructure
Enhancements in Helicopter Technology and Maintenance Plans
- The use of helicopters equipped with advanced technology, including thermal imaging, is being implemented to monitor and maintain electrical networks effectively.
- A pruning plan is established to prevent damage to electrical networks, ensuring the safety and reliability of power supply.
- Installation of roadway barriers aims to protect infrastructure from potential collisions, enhancing overall safety measures for electrical installations.
Upgrades in Substations and Distribution Networks
- Efforts are underway to expand the capacity of high and medium voltage substations, improving service delivery and reliability.
- Maintenance and upgrades are being conducted on transformers, distribution boxes, and bare low-voltage networks to enhance performance.