, photosynthetic microorganisms that produce oxygen, implying that the cellular machinery for photosynthesis arose early in the planet's history. knoll: this tells us that life was present early in our planet's history, but let me show you another rock -- also 3 1/2 billion years old -- from southern africa. and this rock looks very different. you can see here it's bright red, and it turns out the bright red is iron oxides. and in general, this kind of banded, iron-rich rock is called iron formation. narrator: these banded iron formations found all over the world are further clues to the early history of oxygen. dating as far back as 3.5 billion years they stopped forming approximately 1.8 billion years ago. continually entering the ocean through geothermal vents iron remains dissolved until it comes into contact with oxygen. the banding of iron formations on this rock indicate that there was an iron-rich ocean with little or no dissolved oxygen and that, at some point, a pulse of oxygen became available oxidizing the iron and causing it to settle out of solution. this kind of rock could not

, photosynthetic microorganisms that produce oxygen, implying that the cellular machinery for photosynthesis arose early in the planet's history. knoll: this tells us that life was present early in our planet's history, but let me show you another rock -- also 3 1/2 billion years old -- from southern africa. and this rock looks very different. you can see here, it's bright red, and it turns out the bright red is iron oxides. and in general, this kind of banded, iron-rich rock is called iron formation. narrator: these banded iron formations, found all over the world, are further clues to the early history of oxygen. dating as far back as 3.5 billion years, they stopped forming approximately 1.8 billion years ago. continually entering the ocean through geothermal vents, iron remains dissolved until it comes into contact with oxygen. the banding of iron formations on this rock indicate that there was an iron-rich ocean with little or no dissolved oxygen and that, at some point, a pulse of oxygen became available, oxidizing the iron and causing it to settle out of solution. this kind of rock cou

. >> at least steve king is pro photosynthesis. >> absolutely.it's great, scientology is more of a religion than science. climb tolling is just as much science as science. >> the more steve king opens his mouth, the worse for the republican party. >> he said we don't know where the sea level is even, let alone say if it's going to come up globally because of c.o.2 suspend the in that how would we know where the sea level is. >> he promised to go on the steven colbert show, but he pulled out. he filled it in with this cameo laden video that's going around. ♪ ♪ ♪ ♪ >> security. >> that's kissinger. that is classic. >> i had no idea kissinger was so alive, let alone culturally relevant. >> i have to be honest, that was one of my reactions when i saw that video on line. i can't believe henry kissinger is still around. thanks for being here in the war room. i want to thank everybody for having me guest here. the staff of the war room that ha made it easier than it should be and it was not an easy job. thank you all for watching the war room, thanks fo

that means more plant growth, more photosynthesis. >> i wonder what sir isaac newton would say abouthe congressman's flawed hypothesis? and of course rush limbaugh is on the same wavelength. >> see, in my humble opinion, folks, if you believe in god, then intellectually you cannot believe in manmade global warming. >> really, rush? i think if people believe in logic, then they can't believe in you. but these guys are just a tip of the melting iceberg. over half of the republicans in congress deny that humans have had any impact on global warming. even though a u.n. panel said there's a 90% probability that humans are the primary cause of global warming. and over 97% of climate researchers surveyed by the u.s. academy of science agrees with that. but republicans seem to have denying these facts down to a science, folks. climate change is an important issue. and we need to do something about it. it looks like the results of tonight's experiments are in. and the republicans need to go back to summer school. this has been a special edition of the "politicsnation" science lab. ♪ discover

they did it by involving the photosynthesis. in other words, solar power. so what made them so adaptable and so able to live anywhere including on the snowball earth and that triassic earth where they were hanging out it was because it had this ability to get energy in the food supply anywhere it went because it relied on the sun. i have a pretty extensive section in the book i talk about not just the bacteria as a survivor species but also how we can learn from it to think about the solar power as being a cornerstone to survival because it worked for the bacteria and plants. it may actually be the source and the plants if they have observed an ancestor of the bacteria to create plant cells. so it is a really good survival mechanism and it's great that we finally invented it. we are just in the infancy of creating the bacteria so basically one day you too might be like bacteria. but they say humans are like bacteria upon the earth. it's like , that's a great we should be. sorry. >> i'm going to ask a question that may be diverges a little bit from some of t

industry,the farming there will probably sensors that understand photosynthesis or the chemical makeup of the soil and things of this nature, which those devices exist in developing even more of them. getf you are trying to pictures, you will have a camera on it.n -- if you are trying to find out when to pick something, you may the vice.nting so now farmers can know exactly when they should harvest the crop. maybe they do have at one point in time and wait a week or two. which means they get a higher yield, do not waste as much of the fruit. .o get a better product host: host: cameras are privacy concerns. how you answer people who are concerned about this? it so peopleu who are concerned about this? guest: with any technology, you have to use it in a responsible way. that is no different than the internet. we are at a point where we are writing bullying laws because some people aren't as using the technology to do things it is not supposed to be done. we have had privacy laws. peeping tom laws and privacy laws. it says if you break the law, you are held accountable with -- whether you

they did it by evolving photosynthesis. in other words solar power so what made them so adaptable and so able to live anywhere including on snowball earth, including the earth where lystrosaurus was hanging out being all cute and whitley was because it had this ability to get energy and a food supply anywhere it went because it relied on the sun. i actually have a pretty extensive section of the book where i talk about not just the awesomeness of sino-bacteria as a survivor species but also how we can learn from it to think about solar power is being the cornerstone to survival. because hey it worked for sign-up and. and it works for plants. sino-bacteria may actually be the source of chlorophyll in plants. they may have absorbed an ancestor of sino-bacteria to create plant sale so it's a really really good survival mechanism. it's great that we finally -- and we are just in the infancy of imitating sino-bacteria. basically one day you too might be like a terrier. you know when people say humans are like a terrier upon the

they did it by evolving photosynthesis. in other words solar power so what made them so adaptable and so able to live anywhere including on snowball earth, including the earth where lystrosaurus was hanging out being all cute and whitley was because it had this ability to get energy and a food supply anywhere it went because it relied on the sun. i actually have a pretty extensive section of the book where i talk about not just the awesomeness of sino-bacteria as a survivor species but also how we can learn from it to think about solar power is being the cornerstone to survival. because hey it worked for sign-up and. and it works for plants. sino-bacteria may actually be the source of chlorophyll in plants. they may have absorbed an ancestor of sino-bacteria to create plant sale so it's a really really good survival mechanism. it's great that we finally -- and we are just in the infancy of imitating sino-bacteria. basically one day you too might be like a terrier. you know when people say humans are like a terrier upon the

guest: in the farming industry, there will probably sensors that understand photosynthesis or the chemical makeup of the soil and things of this nature, which those devices exist in developing even more of them. so if you are trying to get pictures, you will have a camera on then -- on it. if you are trying to find out when to pick something, you may have fermenting the vice. so now farmers can know exactly when they should harvest the crop. maybe they do have at one point in time and wait a week or two. which means they get a higher which means they get a higher yield, do not waste as much of the fruit. to get a better product. host: cameras are privacy concerns. how you answer people who are concerned about this? -- how do you it so people who are concerned about this? guest: with any technology, you have to use it in a responsible way. that is no different than the internet. we are at a point where we are writing bullying laws because some people aren't as using the technology to do things it is not supposed to be done. we have had privacy laws. peeping tom laws and privacy laws. it say

guest: in the farming industry, there will probably sensors that understand photosynthesis or the chemicalakeup of the soil and things of this nature, which those devices exist in developing even more of them. so if you are trying to get pictures, you will have a camera on then -- on it. if you are trying to find out when to pick something, you may have fermenting the vice. so now farmers can know exactly when they should harvest the crop. maybe they do have at one point in time and wait a week or two. which means they get a higher yield, do not waste as much of the fruit. to get a better product. host: cameras are privacy concerns. how you answer people who are concerned about this? -- how do you it so people who are concerned about this? guest: with any technology, you have to use it in a responsible way. that is no different than the internet. we are at a point where we are writing bullying laws because some people aren't as using the technology to do things it is not supposed to be done. we have had privacy laws. peeping tom laws and privacy laws. it says if you break the law, you are

guest: in the farming industry, there will probably sensors that understand photosynthesis or the chemicalature, which those devices exist in developing even more of them. so if you are trying to get pictures, you will have a camera on then -- on it. if you are trying to find out when to pick something, you may have fermenting the vice. so now farmers can know exactly when they should harvest the crop. maybe they do have at one point in time and wait a week or two. which means they get a higher yield, do not waste as much of the fruit. you get a better product. host: cameras are privacy concerns. how do you answer people who are concerned about this? guest: with any technology, you have to use it in a responsible way. that is no different than the internet. we are at a point where we are writing bullying laws because some people aren't as using the technology to do things it is not supposed to be done. we have had privacy laws. peeping tom laws and privacy laws. it says if you break the law, you are held accountable with -- whether you do it with a man that system, unman the system or bino