The richest percentage of the world’s population polluted more than twice as much as the world’s poorest half between 1990 and 2015, a recent study claims, according to The Guardian.

A report by Oxfam, a development aid charity, and the Stockholm Environmental Institute have looked at CO2 emissions over 25 years.

During that time, global CO2 emissions increased by 60 percent, but the increase in emissions at the richest percentage was three times greater than at the poorest half.

"The world's carbon budget has been wasted on expanding the consumption of the already rich, rather than improving humanity," says Tim Gore, director of research at Oxfam.

The richest 10 percent of the world’s population was responsible for about 52 percent of the world’s emissions over 25 years.

Internationally, the richest 10 percent in the world include those who earn an estimated $ 35,000 a year, or about $ 29,500.

The richest percent earn more than $ 100,000, or about $ 84,300 a year.

According to Oxfam, it is unfair that the rich of the world are allowed to emit significantly more than those living in poverty.

“The best possible and morally defensible purpose is that all of humanity can live a decent life, but (the carbon budget) has been used to make the rich even richer,” Gore criticized.

Goren highlighted emissions from travel.

According to Gore, rich countries often drive high-emission cars such as SUVs and fly more.

“It’s not about people who go on a family vacation once a year, but people who fly long-haul flights every month - it’s a pretty small group of people,” Gore said.

The BBC on Monday released the result of a recent opinion poll that richer countries are taking a more restrained approach to tackling climate change than poorer countries.

Globescan surveyed people's opinions on climate change in 27 countries.

About 90% of respondents considered climate change to be a very serious or somewhat serious problem.

However, when people were asked whether their home governments should address the problem with the same urgency as the coronavirus pandemic, there were big differences between poorer and richer countries.

In Japan, Sweden, Australia, the United States and the United Kingdom, all less than 45% of respondents were strongly in favor of urgent measures.

In Kenya, Mexico, Argentina, Turkey and Nigeria, the corresponding figure was over 70 per cent.