Effects Of Population Growth On Natural Resources

Effects Of Population Growth On Natural Resources – Climate change is one of humanity’s most pressing challenges. Global warming threatens food security, fresh water supply and human health. The effects of climate change, including sea level rise, droughts, floods and extreme weather events, will be more severe unless action is taken to drastically reduce greenhouse gas emissions into the atmosphere.

. Meanwhile, the link between human activities and recent warming of the planet remains a near-unanimous scientific consensus

Effects Of Population Growth On Natural Resources

By 2050, we will have 2 billion people in our ranks, and by 2100 another 1 billion people

The Effect Of Population Growth In The International Economy

Demographic trends and variables play an important role in understanding and addressing the world’s climate crisis. Population growth, along with increased consumption, tends to increase emissions of climate-changing greenhouse gases. Rapid population growth is exacerbating the effects of climate change by straining resources and exposing more people to climate-related risks, especially in low-resource regions.

Incorporating population dynamics into climate change education and advocacy can help clarify why climate interventions should include access to reproductive health care, family planning options, girls’ education, and gender equality. Increased investments in health and education, as well as improvements in infrastructure and land use, will strengthen climate resilience and build adaptive capacity for people around the world.

. The Intergovernmental Panel on Climate Change (IPCC) estimates that human emissions of greenhouse gases, including carbon dioxide (CO

), methane and nitrous oxide have raised global average temperatures about 1°C (almost 2°F) above pre-industrial levels.

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To limit the dangers of climate change, the world’s countries agreed to keep the average temperature increase below 2°C, with the goal of reaching a threshold of 1.5°C.

. If current warming trends continue, the global average temperature increase between 2030 and 2052 is likely to reach 1.5 °C.

. Global warming above this level will significantly increase the risk and frequency of extreme weather events and damage many of the planet’s terrestrial and marine ecosystems.

Keeping the temperature rise to 1.5°C requires fundamentally changing the processes that generate the most greenhouse gas emissions, crucially the burning of fossil fuels for energy, industry and transport. A global shift to using energy more efficiently, generating it from renewable sources (such as solar and wind) and electrifying transportation, will reduce emissions from coal, oil, and natural gas. This is especially important for high polluting areas such as the US, Europe and China

Divergent Effects Of Climate Change On Future Groundwater Availability In Key Mid Latitude Aquifers

. Halting forest loss, planting new forests, and managing land to conserve soil carbon are additional important steps to limit warming for both industrialized and developing countries.

Global warming of 1.5°C or more will significantly increase the risk and frequency of extreme weather events. POPULATION AND TRANSPORTATION LINKS

There has been a reluctance to include population discussions in climate education and advocacy. However, climate change is closely related to population growth. As the United Kingdom-based charity “Population Matters” summarizes: “Each additional person increases carbon emissions, the rich more than the poor, and increases the number of victims of climate change, the poor much more than the rich.”

Emissions, with average emissions for people in industrialized countries and major oil-producing countries topping the charts

Impact Of Population Explosion On Environment

. Highly consumerist lifestyles and production practices in the highest-income countries result in much higher emissions than in middle- and low-income countries, where most of the world’s population lives.

For example, the United States represents just over 4% of the global population, but accounts for 17% of the world’s energy use.

. Carbon emissions per person are among the highest in the world. People living in the US, Australia and Canada have carbon footprints about 200 times larger than those in some of the poorest and fastest-growing countries in sub-Saharan Africa, such as Chad, Niger and the Central African Republic.

. In the middle of the spectrum are middle-income economies, home to 75% of the world’s population.

The Sustainable Use Of Natural Resources: The Governance Challenge

Since there is no panacea for combating climate change, different options need to be pursued. An integrated approach includes educating girls and empowering women to make their own reproductive decisions

The study, which examines the impact of different population projections on future economic growth and energy use, shows that slowing population growth could significantly reduce future greenhouse gas emissions.

. Incorporating different population projections into climate models shows that higher population growth leads to higher emissions. For example, one study found that if global population peaked at mid-century and then declined to 7.1 billion by 2100, carbon emissions could be 41 percent lower than if the population continued to grow to 15 billion ( Figure 1). )

. This means that slowing population growth through rights-based innovations in reproductive health could contribute to more than a quarter of the emissions reductions needed by 2050 to avoid the worst impacts of climate change.

Projected Losses Of Ecosystem Services In The Us Disproportionately Affect Non White And Lower Income Populations

Even in low population growth scenarios, however, carbon-intensive economic growth and technological choices can lead to high emissions. However, a growing body of research suggests that slowing global population growth through rights-based measures, such as increasing access to voluntary family planning services, can play a key role in mitigating climate change.

Despite contributing very little to total emissions, people living in some of the world’s poorest regions may suffer the most devastating impacts of climate change. High rates of poverty and social inequality make many low-income populations vulnerable to weather extremes, water stresses and food production challenges associated with a warming climate.

. This vulnerability can be influenced by factors such as urban planning, geography, land use, infrastructure and access to capital.

. Adding both climate change impacts and rapid population growth to regions with poverty and gender inequality is a humanitarian challenge that will only continue to worsen if not addressed.

Renewable Resource: Definition, Considerations, And Types

Rapid population growth poses challenges for the environment and economic development. Population pressures undermine food security, poverty alleviation, conservation of natural resources, and human health. High fertility rates are due to high rates of unplanned pregnancies and significant unmet need for family planning services. In low-income regions alone, 214 million women want to avoid pregnancy but do not use any form of modern contraception.

Shows that the global population could increase to 8.5 billion in 2030, 9.7 billion in 2050, and 10.9 billion in 2100. The fastest growth is among the 47 least developed countries (LDCs).

Under the UN Framework Convention on Climate Change, LDC governments can assess their vulnerability to climate change with a view to identifying needs and appropriate actions in National Adaptation Plans.

. The vast majority of these programs acknowledge rapid population growth as a major factor in worsening climate vulnerability

Decoupling Natural Resource Use And Environmental Impacts From Economic Growth

The link between population growth and climate vulnerability is visible around the world. In Pakistan, population pressure has led to land clearing, which exacerbates flooding, at the same time that more people have crowded into flood-affected areas.

. Climate change is expected to bring more rainfall in extreme events where increased flooding is accompanied by droughts.

Nine of the ten most climate-vulnerable countries are in sub-Saharan Africa (Figure 2), whose population is expected to double by 2050, accounting for half of global population growth.

. Residents of Somalia, Burundi and the Democratic Republic of Congo are exposed to frequent droughts, severe floods, extreme heat and soil erosion amid rapid population growth.

Pdf) Population Growth And Natural Resources Pressures In The Mekong River Basin

An extreme example can be found in the Sahel region of sub-Saharan Africa (Figure 3), where 100 to 200 million people are likely to lose access to sustainable food supplies in the next 30 to 40 years. The population of the Sahel increased from 31 million in 1950 to 100 million in 2013. Projections show that it will reach more than 300 million by 2050 and 600 million by 2100.

. Scientists predict a temperature rise of 3–5°C by 2050 and up to 8°C by 2100 (Figure 4)

. As a result, frequent droughts and floods threaten to further disrupt food production in a region where more than 80% of agricultural land is already degraded and a growing population is reducing available grazing land.

. Currently, almost 1.8 billion people in 17 countries, a quarter of the world’s population, live in areas of extremely high water stress.

Lesson Plans On Human Population And Demographic Studies

. 11 of these countries are located in the Middle East and North Africa, where the average annual population growth of 1.7% is higher than the global average of 1.1%.

Water scarcity poses a significant threat to India’s 1.4 billion people. India comprises almost 18% of the world’s population, but possesses only 4% of the world’s water resources.

. Agriculture in the densely populated country is highly dependent on irrigation. However, rivers have been diverted and wells overdrawn to meet the growing population’s food and water needs. Groundwater depletion or pollution affects more than half of India’s districts

. As climate change alters monsoon rain patterns and the frequency of droughts, tens of millions of people may be forced to migrate in search of fresh water.

Demographic Transition Model (dtm)

While a warmer world will experience more water scarcity in some regions, flooding is also a threat both inland and along coastlines that also face rising sea levels and increased storm surges. Many floodplains and coastal areas around the world are densely populated. Low-lying coastal zones make up 2% of the world’s land area, but contain more than 10% of the world’s population.

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