courtney keely, al jazeera new york. >> , goal modernizing, for the twurnlt century describes itselfas a grass roots organization dead exaited to spreading the truth about climate change. brad, i wanted to start with you. quote, climate change is the greaterrest challenge of our time. it threatens our climate our only home -- is there still room for skepticism on whether we are seeing climate change happening and the degree of threat that it poses especially to us in the u.s? >> in a word, no. this report is really the latest -- this is the fifth report that iccs has released since 1990, and each one has confirmed and in fact increased the confidence that human activity primarily the burning of fossil fuels is increasing the greenhouse effect and warming the planet and altering our climate system in risky and potentially catastrophic ways. and unfortunately what we have seen in the last three decades is really the running of this experiment on our only planet. and scientists are observing the changes that were projected to happen. and are reporting on that. >> michael, this is fifth

courtney keely reports, defunding obamacare. the bill faces certain defeat in the senate has republicans swinging at each other and leaves little compromise for raising the debt ceiling. >> we have victory for today, for the american people. >> that was house speaker joan boehner, shortly after the vote to keep america afloat but defund being obamacare. >>> house leader eric cantor has been fighting to to be the affordable care act from the start. >> this resolution will also protect the working middle class from the devastating effects of obamacare. >> but the celebratory mood belies the are problem between the tea party and hard line republican party. moderates and conservatives are slamming tea party favorites. >>> don't agree on execution. late friday, president obama called be boehner and reiterated that there would be no negotiation on debt limit. boehner's office responded that while he is disappointed, congress will chart the path ahead. >>> top are congress people like harry reed: >> the speaker has to do everything he

>> as al jazeera's courtney ceely -- keely reports, the problem could be catastrophic. >> hundreds of climate change activists protest in stockholm. >> we are frustrated and upset about how our politicians are not acting the way the science says. >>> the u.n.'s intragovernmental panel on climate change predicts worldwide temperatures could rise between 2.8 to 8.5° by the end of the century. this despite data from the last 15 years that shows a slow down in global warning. warming. the panel stress that the global warming is indisputable. do not always reflect global trends. they are now as certain that global warming is man made as they are that smoking kills. >> the report should be awake-up call. >> multiple lines of evidence confirm trapped by greenhouse gases is indeed warmings the warming the earth's atmospheres, melting ice caps, glaciers. >> reducing global pollution. u.s. secretary of state john kerry stressed that world leaders must ban together on the issue. >> climate change is one issue that absolutely impacts billions of people around the world. >> u.n. secretary general

. >> courtney keely. >> professional of international relations at george washington university. also with me from washington, richard minuter. fm kenya's, given that does this come as a surprise that they were strong enough opull off this westgate mall nightmare? >> no, actually, it does not come as a surprise. the only surprise is that it did not happen earlier. al shabaab has been threatening to pull off a major strike like this for the last two years. the last one they did was in july, 2010 in uganda, where 70-plus people were killed. this is first time they have managed to pull off such a big attack. there have been a number of smaller ones in kenya over the past two years. this is not a difficult task to do, as long as you have the organizational skills the training and the commitment to die for the cause, any group can do it. so it does not prove the strength of al shabaab in somalia itself where it has lost a lot of support. >> most expertsd had thought al shabaab had lott growns, rarely struck outside of somalia. here is a list, they killed 79 in kampala ugan dan, during

courtney keely reports, opponents demanding two and a half years ago that the new government step down in tunisia. >> the rapid overthrow of zin al abadin ali sparked the revolt in the middle east that soon became known as the arab spring, protests erupted in egypt, bahrain, tunisia. islamic political party took the majority of seats in the parliament in a peaceful election, the government was given one year to establish a constitution, electoral laws and establish government. stoking fear noong traditional secular middle class. after popular opposition leaders were killed and almost identical slayings in february and july, protests demanded the government resign. >> we are determined to bring down this government of collaborators, this failed government, this government of bribes and deceit. >> with protests jamming the street, protest has been jammed since august. the looming question now is, will the arab spring give way to darker days of a radical islamist winter? under continuing pressure, teu nearbyian president declared the group a terrorist. poor areas in tunisia, posting warni

courtney keely new york. >> joining me are jonathan cohn and at our an arbor michigan studio and thank you both for joining us tonight. president obama responded to today's vot in the house accusing consciousal republicans of trying to mess with me and threatening a shut down of the government come october 1st. >> unfortunately, right now the debate that's going on in congress is not meeting the test of helping middle class families. it's just, they're not focused on you. they're focused on politics. they're focused on trying to mess with me . they're not focused on you. >> house republicans of course jennifer say they are focused on americans because they think powmg wil obamacare will be a train wreck. is this just about mollifying the republican base? >> the president said republicans are trying to mess with him but they're really messing with each other. we'll see this next week whether they take a volt on the continuing resolution. it pits the republicans ted cruise against the more hard line republicans who don't want to fight the battle on this issue. yes we're going to see wher