Trees Cut Down Today

Approximately 41 million trees are cut down every day worldwide, based on annual estimates of 15 billion trees felled per year (Crowther et al., Nature 2015). That works out to about 475 trees every single second, 24 hours a day.

The same 2015 Nature study estimated approximately 3 trillion trees currently exist on Earth — about 422 trees per person. However, the global tree count has fallen by roughly 46% since the start of human civilization, and continues to decline by a net 10 billion trees per year.

The primary drivers of deforestation are agricultural expansion (cattle ranching, soy, palm oil), commercial logging for timber and paper, infrastructure development, and fuelwood collection. Agriculture accounts for roughly 80% of global deforestation, according to the UN Food and Agriculture Organization (FAO).

Scientists estimate that planting 1 trillion trees in suitable areas could capture roughly 205 billion tonnes of carbon (Bastin et al., Science 2019), but this would not fully offset deforestation — protecting existing old-growth forests is far more valuable than replanting, since mature forests store carbon accumulated over centuries.

Brazil consistently leads global deforestation, primarily due to Amazon deforestation for cattle ranching and agriculture. The Democratic Republic of Congo and Indonesia are also major contributors. The Amazon has lost over 17% of its forest cover in the past 50 years, according to Brazil's INPE monitoring agency.

Growth rates vary enormously by species. Fast-growing plantation trees like eucalyptus or pine reach harvestable size in 7 to 15 years. A typical hardwood oak takes 40 to 150 years to mature. Old-growth trees like the giant sequoia or bristlecone pine can take hundreds to thousands of years — meaning deforestation losses cannot be quickly reversed.