![]() Graphics: Intel Core HD Graphics 3000/4000, NVIDIA 8800 GT, ATI Radeon HD 4850 or betterĪdditional: Controller support: Xbox 360, Xbox One, Playstation 3, Playstation 4, several Logitech and miscellaneous controllers. Processor: Intel Core 2 Duo 1.8Ghz or equivalent (lower might work but is untested) Graphics: 128 MB VRAM with OpenGL 2.1 capable and Compressed texture support (S3TC)Īdditional: 32bit libraries (may or may not be required depending on your system), 32-bit native binaries only Hard Disk Space: 4GB minimum hard drive space Graphics: ATI X1600 / NVIDIA 8600GT / Intel HD3000 or better card with at least 128 MB VRAM Hard Disk Space: 3.75 GB minimum hard drive space Graphics:64 MB GeForce (tm) 3 or higher or ATI(R) Radeon 8500 or higher (except GeForce 4 MX and Go seriesĭirectX: version 9.0 or higher (included with game) Processor: 1.0 GHz Pentium(R) III and AMD Athlon(tm) Hard Disk Space:850 MB free hard drive spaceĪdditional: 32bit libraries (may or may not be required depending on your system) Hard Disk Space: 850 MB free hard drive space Graphics: GeForce 8 series (8xxxx) or Radeon HD4 series (HD4xxxx) Languages: English, French, German, Italian, Spanish, Japanese, Korean, PortugueseīIT.TRIP Presents.Runner2: Future Legend of Rhythm Alien Graphics: NVIDIA GeForce 8800 GT or better / AMD Radeon HD3700 / nVidia GeForce GT 650 (Windows 8.1) “It doesn't have anywhere to go… and it's not going to go away for a long time,” Rothman says.Languages: English, French, German, Polish, Russian, SPanish, Czech, Hungarian, Portuguese This will be true even if humans were to stop emitting all greenhouse gases tomorrow-the planet would need hundreds or thousands of years to cleanse all the excess CO 2 people have pumped into the atmosphere during the industrial era. 1īecause of the glacial pace at which natural carbon sinks absorb CO 2, much of the carbon dioxide humans have emitted over the past centuries will remain in the atmosphere for many years to come. It takes another 10,000 years or so for natural mechanisms to remove excess carbon from the oceans and return them to equilibrium. Rothman says it takes centuries for carbon dioxide in the atmosphere to absorb into the oceans. “What we're doing with taking oil and gas out of the ground is essentially speeding up the natural process.”Īlthough humans have added our own emissions on top of natural carbon sources, we cannot speed up the work of most of the natural carbon sinks that absorb CO 2 from the air. “That full process would eventually bring it all up-but very slowly,” Rothman says. But mining those fossil fuels and then burning them in cars or factories shortcuts nature’s method. ![]() Over thousands or millions of years, the creeping movement of our planet’s tectonic plates brings those fossil fuels back to the Earth’s surface and slowly emits the CO 2 into the air. Hydrothermal vents on the seafloor provide the carbon that-via heat, pressure, and other forces below the planet’s surface-is pressed into fossil fuels such as oil and gas. ![]() For example, consider one part of the natural carbon cycle: how fossil fuels are created and released. Time is the key to understanding this problem, Rothman says, because although the natural carbon cycle balances itself, it does so over exceedingly long timescales. This is why the atmospheric level of CO 2 continues to creep up as humans keep burning fossil fuels: Human activities tip the scales by adding carbon to the air faster than the planet’s sinks can absorb it. “What's being taken out by natural processes is more or less equal to what's being put in-other than the extent to which we've disturbed it,” Rothman says. If people emit only a tenth as much CO 2 as nature does, then why are scientists so concerned about our emissions driving climate change? It is because our extra chunk of carbon emissions has tipped out of equilibrium what was once a balanced cycle. That total dwarfs humanity’s contribution, amounting to ten times as much CO 2 as humans produce through activities such as burning fossil fuels. Altogether the planet absorbs and emits about 100 billion tons of carbon dioxide through this natural cycle every year, Rothman says. Meanwhile, natural sources of CO 2 such as undersea volcanoes and hydrothermal vents release carbon. ![]() Some parts of the planet, such as the oceans and forests, absorb carbon dioxide and store it for hundreds or thousands of years. The Earth’s natural carbon cycle moves a staggering amount of carbon dioxide (CO 2) around our planet, says Daniel Rothman, MIT professor of geophysics. The problem is that human activities have thrown the Earth’s carbon cycle out of balance. The planet naturally releases and absorbs far more carbon dioxide than humans emit by burning fossil fuels. ![]()
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