According to an article from the Center for Research on the Epidemiology of Disasters, 90% of all natural disasters are water-related. But storms, floods, tsunamis, and droughts are not the only threats we face. As our article shows, we should be very careful with even a small bottle of water on a hot day.

Today, Bright Side wants to warn you that water bottles left in the car can cause fires or result in other (major or minor) damages. If you are puzzled with the idea of how it is possible, scroll down.

How it happens:

Have you ever tried to set a sheet of paper on fire using a magnifying glass under direct sunlight? This involves the same process as that.

When sunbeams go through plastic and liquid it has the same effect as a magnifying glass. In a test conducted by the Midwest City Fire Department, sunlight that went through a bottle of water reached 250º! That’s hot enough to convince you to become a full-time pedestrian.

This is just a minor consequence in the photo below. How can it be avoided?

The precautionary measures may seem obvious enough, but we still want to remind you about them.

  • Try not to take a bottle of water into your car. According to, an average adult forgets 3 key facts, chores or events every day. Modern lifestyle, increased pressure and stress are to blame for our growing levels of forgetfulness. So, are you sure that a water bottle in your car will not become one of these 3 forgotten things?
  • If you are a person who can’t live without a bottle of water on a hot day, set a phone reminder and take a bottle of water with you whenever you are going to go out. This will take seconds of your time, but you will not return to a burned car.
  • If you do not want to carry such a heavy bottle with you, be sure to leave it in a place where sunbeams can’t reach it (for example, the trunk).

Some other threats:

The safety of our cars is still less important than our own health. This research done by the University of Florida found out that plastic usually used in water bottles can release antimony and bisphenol A (the dreaded BPA) if it’s exposed to sunlight over some period of time. The more plastic bottles stay in a hot environment, the more antimony and BPA are released. Here is a short list of problems that this issue can lead to:

  • changes in hormone levels
  • heart problems
  • increased risk of cancer
  • stomach pain
  • diarrhea
  • vomiting

Some studies have also linked it to spontaneous abortions and retinal bleeding.

Have you heard about this phenomenon? Do you know any other facts about plastic water bottles? Share your information with us!

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