China uses half the world's coal, but we still need to lead on climate change

It's no use waiting for developing nations to make the first move. We'll fiddle while Rome drowns.

Noah Smith highlights a worrying — if not unexpected — trend: Chinese coal usage is approaching that of the rest of the world combined.

Take a look at this chart, from the Guardian's Adam Vaughn:

Smith writes:

If China and the other developing nations cook the world, the world is cooked, no matter what America or any other country does. China et al. can probably cook the world without our help, because global warming has "threshold effects" (tipping points), and because carbon stays in the air for thousands of years.

Bottom line: We will only save the planet if China (and other developing countries) stop burning so much coal. Any policy action we take to avert global warming will be ineffective unless it accomplishes this task.

Focusing on coal use distorts the picture somewhat. One of the reasons western nations don't use as much coal is because its extraordinarily polluting in ways unrelated to its carbon emissions. Particulates from burning coal cause all manner of respiratory problems, and the radiation levels around coal plants are frequently higher than they are around nuclear plants.

It's not surprising, therefore, that countries that can afford to — or which value the health of their populations more than China does — have largely switched energy generation to other fossil fuels, particularly gas (and that was true even before the shale gas boom in the US). We also can't ignore that other major sources of CO2, like transport and aviation, remain dominated by the West. OECD nations are responsible for two thirds of automobile emissions, and that is expected to stay relatively stable until 2050 at least.

So there's actually a fair amount which the West needs to do to tackle climate change. It's certainly not the case, for instance, that if China and India got their houses in order then we could carry on as before.

But neither is the opposite the case. Smith is correct: without action from the developing world, the developed world's fight against climate change is moot. But I'm not sure that presents as deadly a proposition as he thinks.

For one thing, it remains the case now that China exports goods and services — but mainly goods — worth $200bn a month. A carbon tax levied by the recipients of those exports would impose a massive incentive on the country to cut emissions. Smith is right that the developing world economy is growing, but that's just an argument for moving quickly.

More problematically, the "one thing" that Smith thinks would work — "develop[ing] renewable technologies that are substantially cheaper than coal, and giv[ing] these technologies to the developing countries" — falls prey to the problem of all that tempting energy underground. Cheap renewables in China are just as likely to be used to boost energy production as to replace fossil fuels. And having renewable technologies which are cheaper than coal is quite a long way off, particularly ones which are scaleable to the extent that they can replace Chinese production.

But what I've been told is that the Chinese state isn't necessarily adverse to following the lead of the West in cutting carbon emissions, so long as its clear that we actually are doing it to fight climate change. That's an argument for installing carbon capture and sequestration technology, for instance, because that's something which has no other purpose. Of course, such technology needs to improve its efficiency — both in how much carbon it can scrub, how long it can store it, and how much it costs to do — but to do so would send an unequivocal message that the fight was one we wanted part of.

The worst thing of all would be to use the argument that that "there's no point in us acting without them" to sit back and wait for developing nations to make the first move. Because it's just not going to happen.

Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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The view from Google Earth is magnificent - but there's a problem

Google Earth is spectacular - but it can give a misleading impression of the planet and the threats we face from climate change. 

 

Google Earth wants you to “get lost” in its updated interactive map. Collaborations with new media partners mean you can now climb Mount Everest, swim with sharks or visit Afghanistan with Zari the purple muppet. No, really:


Source: Google Earth

Yet as Trump slashes support for the science behind satellite imaging, is Google’s emphasis on spectacle leading us down the wrong path?

Google Earth's new look all starts well enough. Opening the new site on your browser takes you to an image of a blue earth floating through the blackness of space. Back in the 1970s, similar images taken from the Apollo space missions helped kickstart the modern environmental movement. As the astronomer Sir Fred Hoyle put it: “Once a photograph of the Earth, taken from the outside, is available, a new idea as powerful as any in history will be let loose.”


Source: GETTY and Google Earth

And it gets better. Enter a destination in the search bar and you are greeted with the option to link directly out to the Wikipedia page: nerds of the world, rejoice! 

A guided tour from NASAearth is also on hand for anyone whose nerdery is in need of a prompt: “Geostationary satellites in geosynchronous orbits. Greenhouse gases and global warming. Glaciers... going, going, gone,” says the Bob Dylan-esque entry on its "ABCs from Space".

You can then choose to orbit your landmark of choice in 3D. And let’s face it - who doesn’t want to glide around the top of Mont Blanc, pretending to be an eagle? It’s almost as good as the BBC’s actual eagle-cam

But then it hits you. This is no soaring eagle, buffeted by wind currents and having to constantly adjust its flightpath in the face of real-world obstacles. This is a world surveyed at a safe and sanitising distance. Tourism for the Trump age – focused on providing “a consumption experience”. Certainly it is the opposite of “getting lost”.

In fact if anything has been lost or downplayed, it is the principles of scientific enquiry. The program is littered with human choices. Local versions of Google Maps, for instance, have shown different national borders depending on where in the world you log in. And while new, open-data imagery from America's Landsat 8 program is helping bring many regions up to date, other high-resolution imagery comes from commercial providers, such as Digital Globe. And as this Google 'help' page implies, there are issues of time-lag to face. 

You can’t even be sure what you’re looking at still exists. In 2015, Bolivia’s second largest lake vanished - a combination of climate change, El Nino, and irrigation withdrawal caused 2,700 square kilometres of water to evaporate into a dry salt pan. (It has not recovered, and seems unlikely to do so.) Yet on the new version of Google Earth the lake is still a healthy green:


Source: GoogleEarth

The much lauded film clips from the BBC’s Planet Earth II are similarly short on context. As I've argued before, David Attenborough's latest TV series did little to explain the stories behind the spectacle – there was no mention, for instance, of the arctic anthrax outbreak which caused thousands of reindeer to be culled, nor the role of climate change in worsening locust swarms. 

Finally, the new update actually shows you less of the world than it did before. Gone is the “Historical Imagery” tool that allowed you to see how a place had changed through time. Now, the Citadel of Aleppo in Syria is only visible as a bombed-out ruin. A surreal street-view reveals two women cheerily taking a selfie – with debris all around and their legs spliced out of shot:


Source: GoogleEarth

So why do these omissions matter? Because they take users further away from the evidence-based approach of earth science. It turns out that satellite images on their own are of limited use when it comes to quantifying change. Instead researchers must turn the raw pixels into numbers, which can then variously represent everything from forests to cities, glaciers and farms.

As Dr France Gerard at the UK’s Centre for Hydrology and Ecology explains, this process enables us to live in a better managed environment – be that by measuring air pollution or the impact of fertiliser on soil. The centre's landcover map, for instance, has been mapping British land use since 1990. Similar methods allow Sam Lavender’s company to provide Ugandans with a Drought and Flood Mitigation service, as part of the UK Space Agency’s International Partnership Programme.

Sadly, the need for public engagement has never been more urgent. Brexit and austerity have cast doubt over important projects in the UK. While in Donald Trump’s America, funds for earth monitoring are set to be slashed. Two missions already under the knife are PACE, a spacecraft set to track global ocean health, and CLARREO, which would have produced highly accurate climate records. Trump has also called for the earth-viewing instruments on the DSCOVR satellite to be turned off. Phil Larson, a former space advisor to President Obama, describes this decision as “baffling”.

So what can be done to reverse this trend? Experts I spoke to believe that collaboration is key. With government programs being squeezed, the earth monitoring industry may come to rely increasingly on the trend towards smaller, commercial satellites. These are great for increasing the quantity of data available but their accuracy needs to be constantly checked against the data from the larger and more reliable state-launched equipment.

There’s also still more data out there to share. As Bronwyn Agrios from Astro Digital points out, many countries have been gathering region-specific data – which could, in future, be made open source. “The neat thing about space is that there’s no border,” she concludes.

To help this process, Google Earth could do far more to raise public awareness of the science behind its special effects. Yet at least in one way it is already on the right path: its own new range of collaborations is impressively large. As well as the BBC, you can take interactive tours with The Ocean Agency, the Wildscreen Arkive, and the Jane Goodall Institute – all of whom put conservation up front. The Goodall journey to Tanzania’s Gombe National Park even describes the use of satellite imagery to measure conservation success.

 

More links with other citizen science projects around the world could turn the program into something truly ground-breaking. If it can incorporate these, then desktop-tourism may yet save the planet from Trump. 

India Bourke is an environment writer and editorial assistant at the New Statesman.

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