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Vehicle that was malfunctioning, parked off the side of the road. the dry grass set ablaze there. of course the landscape doesn't help. very elevated terrain, hilly terrain across this region, that helps to exacerbate the situation, and we often say the fire speed tends to double with every 10 degree increase in slope. if you've got a 30 degree slope, 24-mile-per-hour winds, take that up to a 40 degree slope you actually double your wind speed and the fire travels in the same general direction as well, upwards of 48 miles per hour. this is what's made this fire so difficult to be able to conta...

Nations, some of the countries that are most vulnerable to climate change, and sea level rise. these countries believe that 2 degree increase in temperature is still far too much and still threatens their very existence. they're not happy with that as a target in and of itself. ultimately, it's a compromise, but hopefully the intention is it will be something that's strong enough to build on and make more ambitious over time in the future. >> yeah. there is certainly an incredible amount of optimism, and as you mentioned, the leaders will leave. it will be up to the officials to work on this f...

Take a look at four degrees and see it talking about much of the landscape being undertaken by water. we know much of asia also dealing with significant threat. take a look at shanghai, one of the more populated cities with a two degree increase. now put about 45 million people across parts of china below sea level. take it up to four degrees, and many more. it looks like it would be the case inside the next several decades is nothing is done within the coming couple years. >> that could be our new reality. thank you, pedram. >> and thanks for watching. i'm rosemary church. >> and i'm errol ba...

Jobs, the stability. >> you change the narrative and have them focus on a different aspect. >> this is the greatest opportunity they've had in many years. >> we know countries have been making pledges to battle climate change. do you think these pledges are enough to constitute real change? real progress? >> it's an exciting moment. as you and i speak right here, we may be getting the number 100 pledge. we already have maybe -- 99 certainly and maybe even 100 pledges of countries that are coming forward. >> okay. >> having said all of that, let me say, we know that even if 195 countries came i...

To 2 degrees celsius, and greenhouse gas emissions have to rise less than that over the next ten years for the u.n.'s goal to be attainable, but what is the source? you can see here, take a look, yes, there it is. mostly from the use of coal and oil. and a lot of the greenhouse gases are coming from developing countries it turns out. about 40%. experts say it is a sign of economic growth, a 2457bd nd the case in china which emitted 6 tons and india which emitted 1.5 tons which brings me back to the u.n.'s goal to limit global warming to a 2 degree celsius increase. some scientists believe that...