How Deforestation Affects the Economy and You
How Climate Change Worsens the Cost of Deforestation
In the United States, 30 percent of forested areas are gone. Most of it occurred during a logging boom that started in 1880. By 1920, more than two-thirds of U.S. forests had been leveled at least once.
In the East, 99 percent of old-growth forests have either been cleared for farming or housing, or been replaced by second-growth forests. In the Midwest, oak savannas have been reduced to small areas surrounded by corn fields. In the Pacific Northwest, diverse, ancient forests have been replaced with a monoculture of young trees regularly harvested.
People have also introduced blights and pests. They've eliminated many colonial species, such as American chestnuts, eastern white pine, American elm, oaks, ash, and hemlocks.
Deforestation has four causes. The most critical is agriculture. Small farmers use slash and burn agriculture. They cut down trees and then burn them.
The second biggest cause is logging operations. Illegal logging is responsible for between 15 and 30 percent of all wood traded globally. It's estimated to be worth between $30 billion and $100 billion annually. Interpol estimates that illegal logging is responsible for:
- Between 50 and 90 percent of deforestation in the Amazon Basin, Central Africa, and Southeast Asia.
- From 40 to 60 percent of timber production in Indonesia.
- One-fourth of Russia's timber exports.
Development is the third cause of deforestation. In the United States, 33 percent of all houses are near a forest.
The fourth cause is wildfires. Since 1970, wildfires in the western United States have increased by 400 percent. They have burnt six times the land area as before. In 2017, U.S. wildfires burnt 9.1 million acres of forests. Recent wildfire intensity and frequency is worse now than it’s been in the past 10,000 years.
The Economics of Ecosystems and Biodiversity project estimates that the loss of biodiversity through deforestation will cost $4.5 trillion each year. For example, half of all pharmaceuticals comes from genetic resources.
Deforestation has short-term and long-term effects. Short-term is the elimination of habitat for millions of species. In fact, 80 percent of Earth’s land animals and plants live in forests.
Long-term, deforestation worsens climate change. The tree canopy keeps the forest soils moist and more resistant to wildfires, drought, and subsequent flooding. The canopy also blocks the sun’s rays during the day and holds in heat at night. Without it, the environment gets hotter during the day.
Trees also perpetuate the water cycle. They return water vapor to the atmosphere and help increase rainfall.
The World Carfree Network estimates that deforestation adds 15 percent to the carbon dioxide in the atmosphere. This figure is more than the carbon emissions of all the cars and trucks on the world's roads. The Environmental Defense Fund estimates that 32 million acres of tropical rainforest were cut down annually between 2000 and 2009. At that rate, deforestation will add 200 billion tons of carbon into the atmosphere in coming decades.
In the last 50 years, 17 percent of the Amazon rainforest has been destroyed. It might not seem like much, but scientists estimate the tipping point to be 20 percent. At that point, the rainforest's water cycle won't be able to support all the ecosystems within it. The eastern, southern, and central Amazon region would become a savannah.
The Amazon generates half of its own rainfall.
It recycles moisture from the Atlantic at least five times before it reaches the Pacific. The trees absorb rainfall, then release it through transpiration from their leaves. The moisture ascends into clouds that shed more rain. The water cycle keeps the air humid and rainfall constant.
Deforestation disturbs the stabilizing effects of the Amazon's water cycle. The result is intermittent droughts and floods.
The Amazon region had severe droughts in 2005, 2010 and 2015-16. It had severe floods in 2009, 2012, and 2014. Scientists believe these were the first signs of destabilization.
The United Nations’ Reducing Emissions from Deforestation and Forest Degradation program has funneled $117 million into deforestation reduction in 44 developing countries. It rewards people for keeping forests along with coffee growing and meat and milk production. Using this program, Brazil has slowed deforestation by 40 percent since 2008. It's on track to achieve an 80 percent reduction by 2020.
You can slow deforestation by avoiding products using palm oil. Most of its production comes from Malaysia and Indonesia. Huge swaths of tropical forests and carbon-rich swamps are cleared for palm oil plantations. When burned, they release enormous amounts of carbon dioxide.
Palm oil is in almost everything, and it's not clearly labeled. Here are four easy ways to avoid it:
- Avoid products with generic vegetable oil as an ingredient. Instead, choose products with clearly labeled oils, such as sunflower oil, corn oil, olive oil, coconut oil, or canola oil.
- Most prepackaged snack foods made by corporate giants such as Nestle and Unilever contain palm oil.
- If a product's saturated fat content is more than 40 percent of its total fat content, it has palm oil.
- Avoid ingredients with the word "palm" in them.
You can also avoid products such as guitars, furniture, and other products made from tropical hardwoods such as mahogany, cedar, rosewood, and ebony.