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Acid Rain: Reasons, Impacts, And Solutions

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Acid Rain
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The Environmental Protection Agency defines acid rain as acid deposition that includes all types of precipitation containing acidic elements like nitric acid or sulfuric acid. Other than raindrops, the precipitation can also be in the form of hail, fog, gases, snow, or dust. Acid rain created with gases or dust is known as dry deposition.

Etymology:

Robert Angus Smith, a Scottish chemist coined the term in 1852. The Royal Society of Chemistry honored him as the ‘Father of Acid Rain.’ Smith, while examining the contents found in rainwater in industrial regions of Scotland and England, coined this term. He published a book about it in 1872, namely, “Air and Rain: The Beginnings of a Chemical Climatology.”

The reason behind formation of acid deposition:

When compounds such as nitrogen oxides and sulfur dioxide get mixed with air, a chemical reaction takes place. These substances rise high into the earth’s atmosphere, mix with oxygen, other chemicals, and water, giving birth to acidic pollutants. When rain, laden with such impurities fall to the land, we call it acid rain.

Which are the places mainly affected by acid rain?

Places around the globe that have suffered most because of acid rain are the south-eastern part of Canada, Scandinavia, Poland, the eastern part of the U.S. along with some parts of Taiwan and China.

Environmental effects:

The ecosystem consists of plants, humans, animals, and various other organisms that depend on each other and the environment. Everything has a direct or indirect connection to other components. So, if something causes harm to a particular part of a place’s ecosystem, species, the water, and the soil also have to face the consequences. Let us find out about acid rain’s negative impacts.

  1. Marine pollution- Acid rain’s ecological effects are clearly visible in the marine environment. Aquatic animals, especially fish suffer immensely. Most of the eggs of fish fail to hatch as the young eggs are extremely sensitive.
  2. Episodic Acidification- Heavy rain and melting snow can be the causative agents of episodic acidification. Lakes, usually not having high acidity levels, end up with greater portions of acidic deposition due to downpours or melting snow. A wide range of organisms gets killed in this type of situation.
  3. Harming trees and plants- In areas prone to acid rain, dying and dead trees are not a rare sight. Acid rain can lean the soil’s aluminum and also remove nutrients and minerals from the soil. This stunts the growth of trees, making them weak. Acidic clouds and fog also strip nutrients from the foliage of trees, leaving dead needles and brown leaves. The trees then face difficulty in absorbing sunlight that is essential for preparing food.
  4. Nitrogen pollution- Apart from being acidic in nature, nitrogen is also present in acid rain. Nitrogen pollution in coastal regions is responsible for the rapid decline in the population of fish species.
  5. Buffering capacity- Many streams, lakes, and forests experiencing acid rain get saved from severe effects as the soil has the capability to buffer the rain-laden with acids. As the soil neutralizes the rainwater’s acidity, the acid accumulates and remains in the soil, lakes, and streams, posing more threat in the future.
  6. Damage of wildlife- Many animals can be naturally more sensitive to acid than others. Frogs, salamanders, and birds have died due to exposure to acidic rain in big cities. Insects depending on phytoplankton for sustenance also die. Mammals who eat fish and vegetables affected by acid rain indirectly endure the outcomes.

How is acid rain damaging the Indian historical monuments?

Acid rain is corrosive to marble and limestone materials. The majestic ancient monuments that are cultural assets to India have suffered immensely due to acid rain. The Taj Mahal, Qutub Minar, Victoria Memorial, Red Fort, Ellora Caves, Jama Masjid are some of those monuments.

Solutions to acid rain:

There are various measures that we can take for stopping human-made acid deposition:

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The Great Ice Age: Palaeoecologic and Natural Climatic Changes Following It

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The Great Ice Age
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It is natural for us to forget how variable the earth’s climate has been centuries ago, across different geological time frames. The main reason behind it is the extent of such variability is beyond our imagination. Can you picture the earth as a big ball of ice, from the North Pole to the South Pole? No matter how difficult it is to imagine the earth shrouded in ice entirely, the truth is the oldest and longest period of glaciations existed for three hundred million years. Yes, we are talking about the Great Ice Age.

What is an Ice Age?

We can define an Ice Age as a prolonged period of decrease in the Earth’s temperature, resulting in the expansion of ice sheets as well as alpine glaciers in polar regions. An ice age is characterized by the presence of huge sheets of ice or glaciers in the Southern Hemisphere and the Northern Hemisphere and extremely cold climate throughout the year. There are remains of glaciers from the previous ice age in places like Antarctica and Greenland.

What gives birth to an ice age?

An ice age is not something that happens overnight. These ages have shaped the geography and history, but what factors result in the formation of one such age?

If in the northern hemisphere, temperatures in summer remain below the freezing point for thousands of years, an ice age begins. The earth’s orbit and tilt affect which areas get minimum sun rays.

The previous ice age:

The Earth has witnessed at least five ages with glaciers covering significant portions of the planet over a period of 4.6 billion years. The Pleistocene Epoch started nearly 2.6 million years from now and has ended 11,700 years ago. Humans evolved in the Pleistocene Epoch and inhabited almost all regions of the planet towards the end of it. The stage that followed it is currently known as the Holocene Epoch.

How was the climate during the Great Ice Age?

The climate used to be drier and colder during the Great Ice Age. Since most areas were covered with enormous sheets of ice, the rainfall was at least fifty percent less than current times. There were summers and winters, but the cooler summers failed to melt the ice. The average temperature of the Earth was 12 degrees approximately, not enough to melt snow in northern regions. As the snow piled up on the snow, glaciers formed.

Life on earth in the Ice Age

Even if human beings evolved, several species of large mammals became extinct due to the harsh climate of the Ice Age. One of the primary sources of information about the existence of life during this period in Los Angeles’ La Brea Tar Pits. Remains of plant life, insects, animals, and human skeletons are preserved here. Some of the animals inhabiting the Earth at that time were woolly mammoths, giant ground sloths, saber-toothed cats, and mastodons. Other mammals such as macrauchenia, tenrecs, and moonrats thrived in this era.

The latest ice age did not witness any dinosaur as they became effaced from the face of the planet millions of years before that. Crocodiles, turtles, lizards, pythons, and various other reptiles could be found. Birds also flourished, including geese, eagles, hawks, and ducks.

When it comes to vegetation, there was limited vegetation in most areas. Conifers, cypress, yews, oaks, and beeches were among the plants that survived the cold weather conditions. Prairie grasses and flowering plants such as rose, lily, and orchid could be spotted on the ground.

Mass extinction

Approximately 13,000 years from now, seventy-five percent of the large animals of the Ice Age died out. Scientists have tried to understand for years the causes of such mass extinction. Two big reasons are vast climate change and overhunting by humans. Natural disasters in selective portions have also been responsible for wiping out large populations of animals.

Can we experience an ice age again? After learning about the Great Ice Age, if you are wondering whether we are heading into another ice age, we’ll answer your question. Scientists have pointed out that there might be another ice age in the future. However, global warming is instrumental in delaying the process. So, researchers have predicted that humans might start experiencing another ice age after at least 100,000 years.

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Environmental Justice: Definition, Principles, And Importance In Today’s World

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At the beginning of the 1980s in the United States of America, environmental justice became popular as a concept. It emerged as a social movement to enable the fair allocation of environmental burdens and environmental benefits.

What do we understand by the term “environmental justice”?

We can define environmental justice as meaningful involvement and fair treatment of all human beings irrespective of their color, race, income, or national origin in matters of implementation, development, and application of environmental laws, policies, and regulations. So, it stresses the equitable distribution of benefits and environmental risks, as well as rights to individuals and communities to flourish and function in society.

Affected groups:

Among groups most affected by environmental injustice are the racial minority and the high-poverty groups. Poor people report at least 20 percent of health problems due to industrial impure air releases.

A wide range of environmental justice matters has affected African-Americans. Cancer Alley is one infamous example. The place has offices of 125 companies producing petrochemical products, impacting the lives of residents.

Indigenous groups have suffered a lot due to environmental inequality. Native Americans have been subject to abuses because of mining activities for extracting uranium in Western America.

Environmental justice and its key principles:

  • Environmental Justice promotes the holiness of Mother Earth, interdependence and coexistence of all life forms, ecological unity and freedom from environmental destruction.
  • Environmental justice opines that public policies should be framed free from bias or discrimination of any kind, offering justice and respect to all humans.
  • Environmental justice also affirms political, cultural, economic, and environmental rights to all. Environmental Justice gives the right to all communities to take part in decision making, planning, enforcement, implementation, and evaluation as equal partners.
  • It demands universal protection against perils like nuclear testing, extraction, disposal, and production of hazardous or toxic elements as all have the inborn claim to clean land, food, air, and water.
  • Environmental justice is there to safeguard the rights of victims who have been subjected to environmental lawlessness. Such people are eligible for receiving quality treatment and full compensation.
  • Environmental justice points out the necessity of educating existing and future generations in ecological and social matters.
  • It clearly states that all workers should get a healthy and safe work environment and nobody can be forced to select unemployment or unsafe livelihood.
  • It also prohibits military occupation, exploitation, and repression of peoples, cultures, lands, and other forms of life on Earth.
  • Last, but not the least, environmental justice also requests us, the individuals, to make sensible choices when it comes to consumption of Mother Earth’s resources and produces less waste. We should make healthy lifestyle choices for the sake of future generations and the healing of the natural world.
Why do we need environmental justice?
  1. Our relationship with the environment- It defines the relationship of human beings with the environment. Empowerment makes us realize that preserving and protecting the environment is mandatory for protecting humans and other life forms.
  2. Sustainability- It is only through environmental justice that we can comprehend sustainability. Sustainability tells us that how to utilize renewable resources and reduce our dependence on non-renewable sources of energy.
  3. Conservation of resources- It also highlights the significance of fair usage and conservation of natural resources. Unfair distribution can lead to acute scarcity of resources in several areas.
  4. Fair distribution- It also increases awareness about the fair distribution of the resources of the planet. Justice applies whenever one group has more resources as opposed to another, also when one person attempts to take resources from the environment of another person.
  5. Strengthens environmental policies- Another positive aspect of environmental justice is that it reinforces environmental policies, regulations, and laws. Justice is of two types, namely, procedural justice and consequential justice. Environmental justice’s principles give strength to laws by advocating equal use of resources for all.
Conclusion:

Environmental justice is of supreme importance in its struggle for maintenance and improvement of a healthy and clean environment for all, and especially for the weaker sections of the society who have been surviving closest to pollution sources. The Exxon Valdez disaster of 1989, 1972’s Pittston coal incident, and case against Chevron Refining in 1993 are notable instances from the past of environmental justice applied for the welfare of wronged citizens.

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Canadian Environmental Policy: Workings And Impacts

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Canadian Environmental Policy
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Each government has its own way of dealing with things. However, almost all the governments of Canada invested equally in order to maintain the environmental harmony intact and keep the rich biodiversity of Canada alive. In order to deal with the serious concerns of climate change and maintain the air and water clean, Canada has taken aid from many global partnerships. Canadian Environmental Policy works on the basis of those contracts and deals.

Environmental Crisis of Canada:

There are various issues related to the environment that Canada is facing-

  • Canada’s one of the biggest sources of income is the Oil and Gas industry. However, it contributes a lot to the harmful greenhouse gas emissions as well.
  • The air in the cities is of really poor quality.
  • There is plenty of fresh water available in Canada. However, the constant usage of that water has started ruining the biodiversity altogether.

All these problems have made Canada face the crisis of climate change more strongly than ever. That is why; the workings of Canadian Environmental Policy have become more than necessary with time.

International Agreements:

There are many international agreements that have helped the Canadian government form the structure of Canadian Environmental Policy.

  • UN Framework Convention on Climate Change:

UNFCC was formed in order to address the issues related to climate change. There are almost 195 parties involved in this treaty. Canada’s contribution here is to provide data related to greenhouse gas emissions. Canada also plays the part in properly by taking proper steps to reduce gas emission. It also helps other countries from the third world to fight climate change with the aid of resources.

  • Paris Climate Agreement:

195 nations signed the Paris Climate Agreement in 2015 with the aim of keeping the issue of global warming under control.  The goal was to limit the increase of temperature within 1.5 degrees Celsius from the earlier 2 degrees Celsius on a yearly basis.

  • Climate and Clean Air Coalition:

This partnership was made between the government, the public, and the private sectors. The aim of this partnership is to replace the short-lived climate pollutants or better known as SLCP. These pollutants are extremely harmful to the health of the planet as they belong to the group of greenhouse gasses. Not only that, but they are also responsible for global warming and poor quality of air as well.

  • Global Methane Initiative:

This international association seeks to reduce methane pollution. Another aim is to use methane as a source of energy. GMI takes special notice of all the production and consumption systems of oil and gas, agriculture, sewage system of the municipality, etc.

Federal Acts:

Apart from international partnerships, the Canadian government has taken several steps on its own as well.

  • Clean Air and Climate Change Act:

This act is actually an amendment to the Environment Protection Act. According to this act, greenhouse gasses are a threat to both the environment and the health of human beings.

  • Energy Efficiency Act:

The Energy Efficiency Act helps the government to regulate the import and export of products that consume energy. According to this Act, any product that consumes energy must be appropriate according to Canadian rules in order to get into Canada. Another aim of this Act is to use alternative sources of energy more and more.

  • Regulatory Framework for Air Emissions:

The aim here is to reduce greenhouse gas emissions and other pollutants responsible for corrupting the air quality. The Industrial sector, transportation, consumer products, indoor air quality- these are the main four aspects for which this framework is dedicated to.

Canadian Environmental Protection Act:

This Act was established in 1999. This Act was immensely important for it made the government more empowered to use its full potential for protecting the health of both the environment and human beings. Canadian Environmental Protection Act established a proper standard for protecting the environment.

Apart from these, there are several other acts in work as well- The National Energy Board Act, Pan-Canadian Framework on Clean Growth and Climate Change, Environmental Assessment Act, Arctic Waters Pollution Prevention Act, and many more.

All these acts work together to create a proper environmental policy and help Canada deal with climate change issues and other problems associated with it.

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