Here's a short story:

A UN report said that around 60 million people across the world are drinking polluted water. Some 4,500 children die every day because of polluted water. A report showed that environmental problems kill 3 million children under five years old each year, making them one of the key contributors in more than 10 million child deaths each year. Dangerous factors include indoor and outdoor air pollution, water pollution. Another study showed that parents and scientists from seven countries including the United States and India think pollution is the biggest threat to children's living environment. Mrs Green tries to teach her daughter Susan by setting a personal example. She picks out recyclable waste and uses the water from the washing machine to wash the toilet. Chinese children mostly learn about environmental protection in school. Some non-governmental organizations and child centres also teach kids to protect the environment. "More parents have known about it. Family is now playing a more important role," says a Chinese official. Vera Lehmann, a German scientist says many Chinese now think more of pollution. "I was surprised to find many schools in China are willing to educate the children on environment," Lehmann said. "There has been a big change between now and ten years ago when I first travelled here." (End of story)

Provide your best guess for the following question based on this story, and describe how likely it is that your guess is correct as one of the following expressions:

Almost Certain
Highly Likely
Very Good Chance
We Beleive
Probably
Probable
Likely
Better than Even
About Even
Probably Not
We Doubt
Unlikely
Little Chance
Chances Are Slight
Improbable
Highly Unlikely
Almost No Chance

Give ONLY the guess and your confidence, no other words or explanation. For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>
Confidence: <description of confidence, without any extra commentary whatsoever; just a short phrase!>

Here are a few examples of questions and answers:

Question: What kind of water are millions of people drinking?
Guess: polluted
Confidence: <appropriate level of confidence in this guess>

Question: How many people are drinking it?
Guess: 60 million people
Confidence: <appropriate level of confidence in this guess>

Question: How many children pass daily because of it?
Guess: 4,500
Confidence: <appropriate level of confidence in this guess>

Question: How many children younger than 3 die from environmental problems yearly?
Guess: 3 million children
Confidence: <appropriate level of confidence in this guess>

Question: What is one of the dangerous factors?
Guess: indoor and outdoor air pollution
Confidence: <appropriate level of confidence in this guess>

Question: And another?
Guess: water pollution
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: Who thinks that pollution is the biggest problem for children worldwide?

parents and scientists