If I try to open http://climateprediction.net/board/ I always get :
403 FORBIDDEN!

Either the address you are accessing this site from has been banned for previous malicious behavior...
OR...
The action you attempted is considered to be hostile to the proper functioning of this system.

The detected reason(s) you were blocked are:
Scraper/Probe/listed on abuse.rfc-ignorant.org. .

Your IP, and Domain Name (if resolvable) has been logged to a honeypot,
along with the referring page (if any), QUERY, POST, User Agent, time of access, and date.

Please either 1. Stop the bad behavior, or 2. Cease accessing this system.

Your connection details:
Record #: 1
Time: Mon, 01 Oct 2012 19:30:50 +0000
Host: g224045184.adsl.alicedsl.de
IP: 92.224.45.184
Post:
Query:
Stripped Query:
Referer: http://www.climateprediction.net/index.php
User Agent: Mozilla/5.0 (X11; Linux i686; rv:15.0) Gecko/20100101 Firefox/15.0.1
Reconstructed URL: http:// climateprediction.net /board/

Generated by ZB Block 0.4.8

The other site is heavily protected against malware and malpeople.
The messages that you're getting may mean that your ISP is in the range of addresses being blocked for one of many reasons. You're not the first to be affected this way.

I'll send a note to the project people about this, and also about the other problem you've seen in your other post.

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Backups: Here