World Environment Day theme for 2019: ‘Beat Air Pollution’

“It is time to act decisively. My 

message to governments is clear: tax pollution; end fossil fuel 

subsidies; and stop building new coal plants. We need a green 

economy not a grey economy.” 

— Secretary-General, António Guterres

Humans are both creatures and moulders of their environment, which gives them physical sustenance and affords them the opportunity for intellectual, moral, social and spiritual growth. In the long and tortuous evolution of the human race on this planet a stage has been reached when, through the rapid acceleration of science and technology, humans have acquired the power to transform their environment in countless ways and on an unprecedented scale.

The United Nations, aware that the protection and improvement of the human environment is a major issue, which affects the well-being of peoples and economic development throughout the world, designated 5 June as World Environment Day. The celebration of this day provides us with an opportunity to broaden the basis for an enlightened opinion and responsible conduct by individuals, enterprises and communities in preserving and enhancing the environment. Since it began in 1974, it has grown to become a global platform for public outreach that is widely celebrated in more than 100 countries.

‘Beat Air Pollution’

Each World Environment Day is organised around a theme that focuses attention on a particularly pressing environmental concern. The theme for 2019, ‘Beat Air Pollution’, is a call to action call to combat this global crisis. Chosen by this year’s host, China, this year’s topic invites us all to consider how we can change our everyday lives to reduce the amount of air pollution we produce, and thwart its contribution to global warming and its effects on our own health.

What causes air pollution?

Understanding the different types of pollution, and how it affects our health and environment will help us take steps towards improving the air around us. Often you can’t even see it, but air pollution is everywhere. We can’t stop breathing, but we can do something about the quality of our air. Nine out of 10 people worldwide are exposed to levels of air pollutants that exceed safe levels set by the World Health Organisation. There is little doubt – we are faced with an urgent task.

Household – The main source of household air pollution is the indoor burning of fossil fuels, wood and other biomass-based fuels to cook, heat and light homes. Around 3.8 million premature deaths are caused by indoor air pollution each year, the vast majority of them in the developing world.

Industry – In many countries, energy production is a leading source of air pollution. Coal-burning power plants are a major contributor, while diesel generators are a growing concern in off-grid areas.

Transport – The global transport sector accounts for almost one-quarter of energy-related carbon dioxide emissions and this proportion is rising. Transport emissions have been linked to nearly 400,000 premature deaths.

Agriculture – There are two major sources of air pollution from agriculture: livestock, which produces methane and ammonia, and the burning of agricultural waste. Around 24% of all greenhouse gases emitted worldwide come agriculture, forestry and other land-use.

Waste – Open waste burning and organic waste in landfills release harmful dioxins, furans, methane, and black carbon into the atmosphere. Globally, an estimated 40% of waste is openly burned. 

Other sources – Not all air pollution comes from human activity. Volcanic eruptions, dust storms and other natural processes also cause problems. Sand and dust storms are particularly concerning.