More than 800 million trees in the US

They are small but cause a large forest in the United States to die dry and there is a danger of burning.

In the state of Colorado (USA), there is a "dead forest" that is facing a very high risk of fire that people cannot control. Researchers say the forest has 834 million trees that are attacked by beetles that cause them to die dry.

Small perpetrators cause mass tree deaths

The government of Colorado also said that 834 million dead trees will be threatened by natural and human fire sources, while the supply of flowing water from the forest will also be significantly reduced, greatly affecting the live local people.

Every seven years, every 14 big trees in the US have one tree died due to being attacked by bugs, the State Forest Service on an annual report said.

Unusual 834 million trees die in the same state as Colorado is worrying, forest manager Mike Lester said: "It is alarming".

The forests die.(Photo State Forest Service).

This abnormality caused local authorities to pay attention. It is not difficult to realize the abnormality when you go through these deadly dead forests.

The culprit causing the "mass death" of this huge number of plants is extremely small bugs such as mountain pine beetles or spruce beetles.

They are the main causes of forest fires when the bark of the tree causes the loss of nutrients to cause the trees to die. From Colorado to Washington state, annual outbreaks kill 2.6 million hectares of forest.

Forest fire causes greenhouse effect.(Internet photo).

Not only did they kill the trees, they threatened the grizzly bear, because the bears ate the white-crowned pine trees to store food before the winter began.

Not only in the United States, but in Britain or Columbia, this bug also ravaged 14 million hectares of forest (twice the size of the Republic of Ireland) or 80% of all kinds of pine in Canada were destroyed.

In the north, Yukon beetles eat the bark of the spruce, which has caused 400,000 hectares of forest to be destroyed simultaneously, but this is still not as good as in the neighboring country of Alaska with an unprecedented epidemic that cannot be harmed. OK.

It is unbelievable that the tiny creature that has been undergoing for 20 years, attacked more than 13,000 km ^{2 of the} forest, equivalent to 20% of the destroyed land of the forest, making us so frightened. There are no effective measures to prevent them.

The strong development of this bug recently has our "accidental help" when the temperature of the Earth warms up , allowing the beetle to survive and grow even in the winter.

If, in the past, the cold winter temperature dropped to minus 40 degrees Celsius, causing the larvae to die, the warming temperature could make the larvae survive and then thrive in the warm summer.

Consequences of forest fires: Instead of absorption, forests are a huge source of CO2 emissions

Dead forests cause water to not be retained, prolonged drought makes planting or restoring forests damaged by bugs takes a lot of time and effort.

The frightening consequence is that the dead trees are an alarming threat of forest fires, especially pine forests and fire-prone plants. In fact, there were many burnt forests and people were almost helpless because the scope was too large.

The risk of forest fire is huge.(Internet photo).

A range of consequences such as water shortage, drought, rock erosion, melting, changing underground flows and reducing water retention in deep soil layers .

Not only that, wildfires also cause the Earth's temperature to heat up, for example in the Arctic region and under the Arctic - in Alaska, Siberia or the northernmost regions of Europe and Yukon and other parts of Canada.

These are the areas where the climate is changing most rapidly, if global temperatures increase by 0.74 degrees Celsius in the 20th century, in those areas the temperature is nearly doubled.

In 2007, the Intergovernmental Panel on Climate Change (this is a UN-sponsored scientific system) showed many research results on the relationship between a large forest fire and gas conditions. warmer, drier post.

Forest fires are increasing and the fire season also occurs earlier, the dead forests make us lose the source of large CO2 emissions, instead the fire turns forests into CO gas emission sources. ₂ powerful cause greenhouse effect.