Greenpeace UK executive director John Sauven has said that it has been clear for many years that "climate change loads the dice in favour of more frequent extreme weather events like floods."
Mr Sauven said that the "Government's own experts are making the link" meaning that the "the climate-sceptic quacks at the heart of David Cameron's Cabinet have nowhere left to hide".
He said: "Far from being an eccentric intellectual quirk, climate change denial is a grave risk to the future well-being and security of the people of Britain."
He said that the Government's failure to invest in making Britain more resilient to the impacts of climate change is a "grave blunder that should trigger immediate questions about the competence of the ministers in charge".
Tributes have been paid to a seven-year-old boy who died after falling ill in his flood-hit home. Police are investigating whether flooding was a factor in the death of the boy, named locally as Zane Gbangbola.
Officers have refused to be drawn on whether carbon monoxide poisoning from a generator pumping out flood water from his home may have been to blame.
Anoop Hothi, 31, taught Zane martial arts at the Sport Martial Arts Academy in Egham, which he joined aged five. Mr Hothi, also a neighbour of Zane's family, said: "Little Zane was an absolute joy to teach, and it's children like him who make teaching so much more rewarding.
"I'm sure his school teachers would say the same thing. He was a lovely boy, and he came from good, caring parents".
The Government's public health agency is assisting police in Surrey with its investigation into the sudden death of a seven-year-old boy in flood-hit Chertsey.
Police said the flooding was "one line of inquiry" they were pursuing in relation to the boy's death.
It is too early to speculate on the cause of death and Public Health England is working with the other agencies to assist this investigation and ensure appropriate action is taken to protect public health.
Currently, there are no indications that there is a wider public health risk.
IT worker David North, 45, who works in Chertsey, said: "I was taking photographs of the flooding in the local area. As I turned up, there was a higher-than-normal police presence.
"Officers were blocking direct access to some of the roads and they were being quite forceful about where you could and couldn't go. I saw a yellow hose coming from the front window on the ground floor. Whether it was pumping out water or something else, I don't know."
Mr North said he believed the incident was discovered while "evacuations were being carried out due to the flooding."
Police have said the cause of the illness which killed a seven-year-old boy and hospitalised two adults, thought to be his parents, is currently unknown and refused to rule out a link to flooding in the local area.
Chief Superintendent Dave Miller said it was "very sad" that the child had died and said his thoughts were with his parents who are currently ill in hospital.
Our aim is to keep people safe and find out the cause.
I would like to reassure local residents our officers are working closely with partner agencies and a full and thorough investigation is currently under way to determine the circumstances around this tragic incident.
We are currently following various lines of inquiry and it would be wrong to speculate on the cause of death at this stage.
The cause of the illness is currently unknown but what I can confirm is that the people who were taken ill are from a very localised area.
We cannot rule out that there may be a link to flooding in the local area and whilst the investigation is ongoing local residents should follow sensible precautions.