White House officials barred a State Department intelligence staffer from submitting written testimony this week to the House Intelligence Committee warning that human-caused climate change could be "possibly catastrophic" after State officials refused to excise the document's references to the scientific consensus on climate change.

The effort to edit, and ultimately suppress, the written testimony of a senior analyst at the State Department's Bureau of Intelligence and Research comes as the Trump administration is debating how best to challenge the idea that the burning of fossil fuels is warming the planet and could pose serious risks unless the world makes deep cuts in greenhouse gas emissions over the next decade.

Senior military and intelligence officials have continued to warn climate change could undermine America's national security, a position Donald Trump rejects.

Officials from the White House's Office of Legislative Affairs, Office of Management and Budget and National Security Council all raised objections to parts of the testimony that Rod Schoonover, who works in the office of geography and global affairs, prepared for a hearing on Wednesday.

According to several senior administration officials, all of whom spoke on the condition of anonymity in order to talk about internal deliberations, Trump officials sought to cut several pages of the document on the grounds that its description of climate science did not mesh with the administration's official stance.

Coral reefs: Trying to combat climate change damage Show all 25 1 /25 Coral reefs: Trying to combat climate change damage Coral reefs: Trying to combat climate change damage Masked Butterflyfish (Chaetodon semilarvatus) swimming over a bommie reef in the Egyptian Red Sea marine reserve of Ras Mohamed, off the southern tip of the Sinai peninsula AFP/Getty Coral reefs: Trying to combat climate change damage Rising sea temperatures cause corals to bleach (go white) and die Getty/iStock Coral reefs: Trying to combat climate change damage A giant clam is seen nestled among coral reefs at the Obhor coast, 30 kms north of the Red Sea city of Jeddah AFP/Gett Coral reefs: Trying to combat climate change damage Coral reef in seychelles that has degraded After the reef has died they break up and become rubble. On this reef there is some regrowth of young corals so there is hope for recovery Getty Coral reefs: Trying to combat climate change damage Coral gardening A rabbitfish in a net H Goehlich Coral reefs: Trying to combat climate change damage A school of fish and a sea can in a healthy coral reef off the coast of Isla Mujeres, Mexico Getty/Lumix Coral reefs: Trying to combat climate change damage Sky views of great barrier reef in Australia Getty/iStock Coral reefs: Trying to combat climate change damage A fish swims among coral reefs at the Obhor coast AFP/Getty Coral reefs: Trying to combat climate change damage Researchers from the Interuniversity Institute for Marine Sciences in the southern Israeli resort city Eilat monitor coral growth while scuba diving in the Red Sea AFP/Getty Coral reefs: Trying to combat climate change damage Coral gardening A rope nursery Nature Seychelles Coral reefs: Trying to combat climate change damage Fish swimming off the coast of Egypt's Red Sea resort of Hurghada. The rebounding tourism sector is worrisome for the fragile marine ecosystem AFP/Getty Coral reefs: Trying to combat climate change damage Coral gardening A parrotfish on the reef C Reveret Coral reefs: Trying to combat climate change damage Gorgonian sea fan on a a coral reef in the Egyptian Red Sea marine reserve of Ras Mohamed AFP/Getty Coral reefs: Trying to combat climate change damage A diver swims during a Great Barrier Reef experience on Lady Elliot Island, Australia Getty/Tourism Queensland Coral reefs: Trying to combat climate change damage Jessica Bellsworthy, a PhD student conducting research on the coral reefs of the Gulf of Eilat, holds a coral in an aquarium at the Interuniversity Institute for Marine Sciences in Eilat AFP/Getty Coral reefs: Trying to combat climate change damage Coral reefs in the water off the Obhor coast, 30 kms north of the Red Sea city of Jeddah in 2008 AFP/Getty Coral reefs: Trying to combat climate change damage A diver photographs golden anthias (Pseudanthias aurulentus) on a coral reef in the Egyptian Red Sea marine reserve of Ras Mohamed AFP/Getty Coral reefs: Trying to combat climate change damage FUNAFUTI, TUVALU - AUGUST 15: From the air the ocean (L) and the logoon (R) and separated by a thin stip of land on August 15, 2018 in Funafuti, Tuvalu. The small South Pacific island nation of Tuvalu is striving to mitigate the effects of climate change. Rising sea levels of 5mm per year since 1993, well above the global average, are damaging vital crops and causing flooding in the low lying nation at high tides. Sea water rises through the coral atoll on the mainland of Funafuti and inundates taro plantations, floods either side of the airport runway and affects peoples homes. The nation of 8 inhabited islands with an average elevation of only 2m above sea level is focusing on projects to help it and its people have a future. Four of the outer islands are 97% solar energy dependent and the Tuvalu Government is working to achieve 100% renewable energy from wind and solar by 2025. Tuvalu's 11,000 inhabitants see the effects of climate change in their daily life. (Photo by Fiona Goodall/Getty Images for Lumix) Fiona Goodall Getty/Lumix Coral reefs: Trying to combat climate change damage A photo taken on April 4, 2019 shows fish swimming off the coast of Egypt's Red Sea resort of Hurghada. - In dazzling turquoise waters off Egypt's Red Sea coast, scuba divers swim among delicate pink jellyfish and admire coral -- but the rebounding tourism sector is worrisome for the fragile marine ecosystem. (Photo by Mohamed el-Shahed / AFP) (Photo credit should read MOHAMED EL-SHAHED/AFP/Getty Images) MOHAMED EL-SHAHED AFP/Getty Coral reefs: Trying to combat climate change damage Coral gardening A damselfish Sarah Frias-Torres Coral reefs: Trying to combat climate change damage Divers swim past a coral reef in the Egyptian Red Sea marine reserve AFP/Getty Coral reefs: Trying to combat climate change damage A puffer fish hovering above coral in the Egyptian Red Sea marine reserve AFP/Getty Coral reefs: Trying to combat climate change damage Researchers from the Interuniversity Institute for Marine Sciences in the southern Israeli resort city Eilat monitor coral growth while scuba diving on June 12, 2017 in the Red Sea off Eilat. Global warming has in recent years caused colourful coral reefs to bleach and die around the world -- but not in the Gulf of Eilat, or Aqaba, part of the northern Red Sea. At the Interuniversity Institute for Marine Sciences in southern Israeli resort city Eilat, dozens of aquariums have been lined up in rows just off the Red Sea shore containing samples of local corals AFP/Getty Coral reefs: Trying to combat climate change damage This photo taken on April 21, 2017 shows an aerial shot of part of mischief reef in the disputed Spratly islands on April 21, 2017. Philippine Defence Secretary Delfin Lorenzana flew to a disputed South China Sea island on April 21, brushing off a challenge by the Chinese military while asserting Manila's territorial claim to the strategic region. / AFP PHOTO / TED ALJIBE (Photo credit should read TED ALJIBE/AFP/Getty Images) TED ALJIBE AFP/Getty Coral reefs: Trying to combat climate change damage fish swimming off the coast of Egypt's Red Sea resort of Hurghada AFP/Getty

Critics of the testimony included William Happer, a National Security Council senior director who has touted the benefits of carbon dioxide and sought to establish a federal task force to challenge the scientific consensus that human activity is driving recent climate change.

Administration officials said the White House Office of Legislative Affairs ultimately decided that Mr Schoonover could appear before the House panel, but could not submit his statement for the record because it did not, in the words of one official, "jibe" with what the administration is seeking to do on climate change.

This aide added that legislative affairs and OMB staffers routinely review agency officials' prepared congressional testimony before they submit it.

A House Intelligence Committee aide confirmed that the panel received the written testimony of the two other intelligence officials who testified at Wednesday's public hearing, but not Mr Schoonover's.

Francesco Femia, CEO of the Council on Strategic Risks and cofounder of the Centre for Climate and Security, questioned why the White House would not have allowed an intelligence official to offer a written statement that would be entered into the permanent record.

"This is an intentional failure of the White House to perform a core duty: inform the American public of the threats we face. It's dangerous and unacceptable," Mr Femia said in an email on Friday. "Any attempt to suppress information on the security risks of climate change threatens to leave the American public vulnerable and unsafe."

Mr Schoonover could not be reached for comment on Friday, and the State Department referred questions to the White House.

A White House spokesperson, who asked for anonymity in order to discuss private deliberations, said in an email, "The administration does not comment on its internal policy review."

Mr Schoonover's 12-page prepared testimony, obtained by The Washington Post, includes a detailed description of how rising greenhouse gas emissions are raising global temperatures and acidifying the world's oceans. It warns that these changes are contributing to the frequency and intensity of extreme weather events.

"Climate-linked events are disruptive to humans and societies when they harm people directly or substantially weaken the social, political, economic, environmental, or infrastructure systems that support people," the statement reads, noting that while some populations may benefit from climate change, "The balance of documented evidence to date suggests that net negative effects will overwhelm the positive benefits from climate change for most of the world, however."

White House officials took aim at not only some of the document's scientific citations but some of the statements that Mr Schoonover, who served as a full professor of chemistry and biochemistry at California Polytechnic State University, San Luis Obispo, made about the national security implications of climate change.

The following statement, for example, attracted White House scrutiny: "Absent extensive mitigating factors or events, we see few plausible future scenarios where significant -- possibly catastrophic -- harm does not arise from the compounded effects of climate change."

Mike Pompeo praises climate change for opening up Arctic trade routes

Mr Trump has been steadfast in shrugging off the warnings from scientists about the potential impacts of climate change, reiterating in an interview with Piers Morgan on Good Morning Britain this week that he does not regret pulling the United States out of a 2015 global climate accord aimed at curbing greenhouse gas emissions.

"I believe that there's a change in weather, and I think it changes both ways," he said. "Don't forget, it used to be called global warming. That wasn't working. Then it was called climate change. Now it's actually called extreme weather, because with extreme weather, you can't miss."

During the interview he blamed China, India and Russia for polluting the environment, insisting the United States has "among the cleanest climates," and noted the United States had suffered extreme weather in the past. "Forty years ago, we had the worst tornado binge we've ever had. In the 1890s, we had our worst hurricanes."

The United States remains the world's second-largest emitter of carbon dioxide, behind China.

Despite the internal controversy over the testimony prepared for Wednesday's hearing, all three witnesses detailed ways in which climate-related impacts could exacerbate existing national security risks.

Peter Kiemel, counsellor at the National Intelligence Council, and Jeffrey Ringhausen, a senior analyst at the Office of Naval Intelligence, talked about issues ranging from how terrorist cells could capitalise on water shortages to disputes with other nations over shifting fishing grounds.

Mr Schoonover, for his part, said in his opening statement that the planet was warming and that it could pose a major risk to the United States and other nations.

"The Earth's climate is unequivocally undergoing a long-term warming trend, as established by decades of scientific measurements and multiple, independent lines of evidence," he said, adding later, "Climate change effects could undermine important international systems on which the US is critically dependent, such as trade routes, food and energy supplies, the global economy and domestic stability abroad."