To avoid this kind of smear, we want to restrict the Leipzig Declaration to signers with impeccable qualifications."

In 1995 he organised a conference in Leipzig, Germany, which produced the Leipzig Declaration on global climate change.

They arose after he signed the Leipzig Declaration, a document often used to refute those who agree with many scientists' conclusions that anthropogenic climate change is a fact.

He opposed it in the Leipzig Declaration of S. Fred Singer's Science and Environmental Policy Project.

Jeff Jacoby, a columnist with the 'Boston Globe', describes the signers of the Leipzig Declaration as "climate scientists" that "include prominent scholars."

The Leipzig Declaration on Global Climate Change is a statement made in 1995, seeking to refute the claim there is a scientific consensus on the global warming issue.

Both the Leipzig Declaration and Frederick Seitz's Oregon Petition have been quoted as authoritative sources during deliberations in the U.S. Senate and House of Representatives.

Hesselager attempted to contact the declaration's 33 European signers and found that four of them could not be located, twelve denied ever having signed, and some had not even heard of the Leipzig Declaration.

Seitz signed the 1995 Leipzig Declaration and, in an open letter inviting scientists to sign the Oregon Institute of Science and Medicine's global warming petition, called for the United States to reject the Kyoto Protocol.

SEPP was the author of the Leipzig Declaration, which it says was based on the conclusions drawn from a November 1995 conference in Leipzig, Germany, which SEPP organized with the European Academy for Environmental Affairs.

Although the key data on which the Leipzig declaration relied (see: satellite temperature record) has been invalidated by subsequent research, and much new evidence has accumulated, the declaration continues to be cited, along with the Oregon petition as evidence of the current views of scientists on climate change.

The European Academy for Environmental Affairs (also known as: European Academy of Environmental Affairs, is a private organization which gave its label for the Leipzig Declaration on Global Climate Change, a SEPP-initiated document in which some scientists argue against global warming theories.