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The rate of net forest loss declined from 7.8 million ha per year in the decade 1990–2000 to 5.2 million ha per year in 2000–2010 and 4.7 million ha per year in 2010–2020. The rate of decline of net forest loss slowed in the most recent decade due to a reduction in the rate of forest expansion. [14]
A year earlier, an academic claimed that, since 2016, forested area has declined by 18,000 rai, a significant improvement over the period 2008–2013, when a forested million rai were lost each year. [68] In 1975, the government set a goal of 40% forest coverage—25% natural forest and 15% commercial forest—within 20 years.
Deforestation in the tropics – given as the annual average between 2010 and 2014 – was responsible for 2.6 billion tonnes of CO 2 per year. That was 6.5% of global CO 2 emissions . Deforestation is a primary contributor to climate change , [ 1 ] [ 2 ] and climate change affects the health of forests. [ 3 ]
Yet, with 300 billion trees in the country and the Forest Service planting millions each year, the few hundred thousand that people cut down each year probably won’t have a big effect on the ...
The World Counts shows that there is 15 years until Earth is exhausted of freshwater, and 23 years until there are no more fish in the oceans. They also estimate that 15 billion trees are cut down every year, while only 2 billion trees are planted every year, and that there is only 75 years until rainforests are completely gone. [72] [73]
For comparison, the major source of CO 2, namely emissions from fossil fuel combustion and cement production, amount to 6.3 ± 0.6 Gt carbon per year. [15] In 2021 the Global Carbon Project estimated annual land-use change emissions were 4.1 ± 2.6 Gt CO 2 (CO 2 not carbon: 1 Gt carbon = 3.67 Gt CO 2 [16]) for 2011–2020. [17]
Net primary production is estimated at 21.9 gigatonnes of biomass per year ... trees from a forested area by cutting ... per year between 2000 and 2010, down from 8.3 ...
Many ancient cultures along the Mediterranean Sea harvested these trees including the Phoenicians who used cedar, pine and juniper for boat building, the Romans, who cut them down for lime-burning kilns, and the Ottomans, who used much of the remaining cedar forests of Lebanon as fuel in steam trains in the early 20th century. [118]