Sefton Central Labour MP BIll Esterson said the latest report published by Sefton as part of its Core Strategy consultation showed the weight of opposition to building on our countryside.
Bill said the latest report on the borough's Core Strategy revealed that people in communities throughout the borough did not want the countryside being "swallowed up" by developments.
In the report, Sefton states that last year's consultation exercise saw around 2,500 individual responses and petitions containing 7,700 signatures being submitted.
After reading the report, Bill said the strength of feeling from residents of Sefton in favour of saving the greenbelt was overwhelming.
Bill said: "The findings of last year's consultation has shown overwhelming public demand to protect our greenbelt in Sefton.
"Sefton has been presented with some very compelling arguments by local people throughout this consultation in favour or protecting our greenbelt and greenspaces. These include the impact on the local traffic system, on health services, on schools, the impact of increased flooding and sewage, the loss of high grade agricultural land, the loss of community identity and damage to local wildlife.
"And because so many people are speaking in unison on these issues, it is vital that these concerns are taken into account when the final 25 year Core Strategy plan is drawn up."
Bill thanked everyone who contributed to the consultation or added their names to a petition.
Bill said: "A number of petitions have been presented calling for the general protection of the greenbelt in Sefton, or for specific sites to be saved.
"But the sheer scale of responses has obviously taken everyone by surprise and shows the strength of feeling on this issue.
"People in Maghull, Aintree, Melling, Lydiate, Formby, Crosby, Thornton and Hightown have all added their voices to the campaign to protect our countryside in Sefton.
"This is people in our communities wanting to protect the countryside in Sefton and save their communities from over-development.
"While there is a need for affordable properties in the borough, the message is clear, build on the brownfield sites and begin the process to re-use empty properties. There are other options which are available.
"But the scale of the responses to this consultation isn't just a message to Sefton, it is a message to this Tory-Lib Dem government who through its damaging and dangerous changes to the planning laws, are opening the door to developers to build on our greenbelt land.
"The Conservatives and Liberal Democrats would be wise to hear what the people have to say about this issue, because this is just the start of the campaign to stop them and their big business bulldozers from destroying our communities."