The Cave of Death in Costa Rica can bring death to any creature that enters it

Located at the edge of the Poas volcano, la Cueva de la Muerte has a small cave (Cueva de la Muerte means Cave of Death in Spanish), only 2 meters deep and 3 meters long, making it a Seemingly cozy hideaway for insects, birds and small animals looking for shelter.

But unlike its harmless appearance, when you enter this small cave, you will almost die immediately because it is filled with toxic gas, a colorless, odorless, tasteless and extremely toxic gas. harmful. To demonstrate how dangerous the Cave of Death really is, local guides place a burning torch inside the cave and it is instantly extinguished due to the lack of oxygen and high carbon dioxide concentration inside. in.

The Cave of Death is one of the most dangerous caves in Costa Rica. Nestled in the tropical forests of this country, this cave is known as the place of death because luckily any creature that enters may never return.

No one really knows exactly where the carbon dioxide in the Cave of Death comes from, but some researchers have concluded that the strange phenomenon is the result of gas leaking to the surface through cracks. on the Earth's crust is called the "San Miguel Fault". The cave's location near an active volcano may also be related to the gas.

Carbon dioxide is of organic origin, formed from underground mineral deposits, subjected to high temperatures and pressures in Earth's magma, where oxygen is absent. It is also what is emitted due to environmental pollution caused by excessive use of fossil fuels. It has the characteristic of remaining in the environment for a long time - for example in the atmosphere - creating a greenhouse effect.

In the case of the Cave of Death, this gas is colorless and odorless. In addition, it is denser and heavier than air, so when it floats in the cavity it will move, occupying the space below the cave.

One thing is certain: scientists have discovered that the Cave of Death produces about 30kg of carbon dioxide per hour.

Although it is a place with scary phenomena, the Cave of Death has become a tourist attraction. The area has been developed with a series of hotels and accommodations in San Carlos. To ensure safety, the cave is surrounded by fences and multilingual warnings. Tour guides often carry a torch, using it to illustrate the boundary between life and death as they lead visitors closer to the cave. The fire will die out immediately as it continues to strain against the dense layer of CO2 gas near the ground inside the cave.

The deadly properties of this tiny cave were discovered by accident during the construction phase of the Recreo Verde complex. A worker who gets too close to the entrance begins to feel tired, leading to a thorough investigation of the surroundings. Its deadly reputation has made the Cave of Death one of the few commercial caves that visitors cannot enter.

When inhaling high concentrations of CO2, it can lead to CO2 poisoning. Symptoms include headache, dizziness, nausea, vomiting, difficulty breathing and loss of consciousness. In severe cases, CO2 poisoning can lead to death. CO2 can irritate the respiratory system, leading to shortness of breath, coughing and asthma. It can also reduce lung function, making breathing more difficult, especially for people with asthma or chronic obstructive pulmonary disease (COPD).

The cave of death has a number of signs warning people not to enter if they value their lives, but its small size and narrow entrance also make it very difficult for people to access. In addition, dense amounts of carbon dioxide (about 80 - 90% purity) often lie at the bottom of the cave, making this place more dangerous for small animals. They will begin to suffocate as soon as they enter the cave.

Long-term exposure to CO2 may increase the risk of cardiovascular disease, including heart attack and stroke. Severe CO2 exposure can lead to brain damage; May affect the nervous system, leading to problems such as anxiety, depression and cognitive disorders. even death.

Similarly, another terrifying cave was found in Saudi Arabia (Umm Jirsan cave), where a mountain of bones was discovered in a vast network of underground tunnels.

According to Live Science, this lava tube cave has been inhabited by hyenas for thousands of years. These creatures are said to have created the mountain of bones over a period of seven thousand years.

CO2 is the main greenhouse gas causing climate change. Climate change is causing many negative impacts on people and the environment, including rising sea levels, more extreme weather events and loss of biodiversity.

When CO2 dissolves into the ocean, it increases the acidity of the ocean. Ocean acidification is harming marine life, such as coral and fish.