President Bush, still in denial about global warming, declined to attend the UN-sponsored World Summit on Sustainable Development in Johannesburg, South Africa, this past week, but Free Speech TV (FSTV) was there and will deliver after-the-fact coverage to cable viewers this weekend. On September 7 and 8, FSTV, a nonprofit activist satellite network carried on Dish Network channel 9415 and on the Web at www.freespeech.org, will team up with local cable providers to air Mobile-Eyes on Sustainable Development, a collection of reports from Johannesburg; debates featuring environmental activists, corporate execs, and government officials on such topics as renewable energy and genetically modified foods; documentaries on the history of the sustainable movement, corporate malfeasance, and environmental activism; and interviews with US activists and people on the streets of South Africa. (A detailed schedule can be found at www.freespeech.org/fsitv/scripts/php/fstv/search_schedule.php3.) FSTV Summit coverage can be seen on Cambridge Community TV on Saturday, on Channel 22, from 8 a.m. to 2 p.m., and on Sunday, on Channel 10, from noon to midnight. You can also catch it on Somerville Community Access, on Channel 3, on Saturday, from 11 a.m. to noon, 1:30 to 2 p.m., and 11 p.m. to 9 a.m., and on Sunday, from 3 to 4:30 p.m., and 11:30 p.m. to midnight.