KICUCULA, Uganda » According to the company’s proposal to join a U.N. clean-air program, the settlers living in this area left in a "peaceful" and "voluntary" manner.

People here remember it quite differently.

"I heard people being beaten, so I ran outside," said Emmanuel Cyicyima, 33. "The houses were being burnt down."

Other villagers described gun-toting soldiers and an 8-year-old child burning to death when his home was set ablaze by security officers.

"They said if we hesitated they would shoot us," said William Bakeshisha, adding that he hid in his coffee plantation, watching his house burn down. "Smoke and fire."

According to a report released by the aid group Oxfam on Wednesday, the Ugandan government and a British forestry company forcibly expelled more than 20,000 people from their homes here in recent years, emblematic of a global scramble for arable land.

"Too many investments have resulted in dispossession, deception, violation of human rights and destruction of livelihoods," Oxfam said in the report. "This interest in land is not something that will pass." As population and urbanization soar, it added, "whatever land there is will surely be prized."

Across Africa, some of the world’s poorest people have been thrown off land to make way for foreign investors, often uprooting local farmers so that food can be grown on a commercial scale and shipped to richer countries overseas.

But in this case, the government and the company said the settlers were illegal and evicted for a good cause: to protect the environment and help fight global warming.

The case twists around an emerging multibillion-dollar market trading carbon-credits under the Kyoto Protocol, which contains mechanisms for outsourcing environmental protection to developing nations.

The company involved, New Forests Co., grows forests in African countries with the purpose of selling credits from the carbon-dioxide its trees soak up to polluters abroad. Its investors include the World Bank, through its private investment arm, and Hongkong and Shanghai Banking Corp., HSBC.

In 2005, the Ugandan government granted New Forests a 50-year license to grow pine and eucalyptus forests in three districts, and the company has applied to the U.N. to trade under the mechanism. The company expects that it could earn up to $1.8 million a year.

But there was just one problem: People were living on the land where the company wanted to plant trees. Indeed, they had been there a while.

"He was a policeman for King George," William Bakeshisha said of his father, who served with British forces during World War II in Egypt.

Bakeshisha, 51, said he was given land in Namwasa forest in Mubende district in 1997 by a local kingdom through his father’s serviceman association. Bakeshisha lived happily on the property for years, becoming a local administrator and ardent support of President Yoweri Museveni. In a neighboring district, people had been living on land the company would later license since the 1970s.

Tensions brewed. The company and government said the residents were living illegally in a forest. Residents said they had rights. Community members took the company to court in 2009 and a temporary injunction was issued, barring evictions. Nevertheless, Oxfam and residents say, evictions continued.

Residents were given until Feb. 28, 2010, to vacate company premises while soldiers and the police kept surveillance. Company officials visited, too. From time to time a house would be burnt down, villagers said. Then came Feb. 28, a Sunday.

"We were in church," recalled Jean-Marie Tushabe, 26, a father of two. "I heard bullets being shot into the air."

"Cars were coming with police," Tushabe said, sitting among the ruins of his old home. "They headed straight to the houses. They took our plates, cups, mattresses, bed, pillows. Then we saw them getting a matchbox out of their pockets."

Homeless and hopeless, Tushabe said he took a job with the company that pushed him out. He was promised more than $100 each month, he said, but received only about $30.

New Forests says that it takes accusations that settlers were forcibly removed "extremely seriously" and will conduct "an immediate and thorough" investigation.

"Our understanding of these resettlements is that they were legal, voluntary and peaceful and our first hand observations of them confirmed this," the company said in a response to the Oxfam report.

A Ugandan government spokesman said residents in Namwasa were illegal encroachers, but he acknowledged and deplored the use of violence to remove them, saying it was done by corrupt politicians and police officers operating outside the law.

© 2011 The New York Times Company