31.07.2017

# New Publications

0 Comments

Nalam, Aditya; et al. (2017): Effects of Arctic geoengineering on precipitation in the tropical monsoon regions

Nalam, Aditya; Bala, Govindasamy; Modak, Angshuman (2017): Effects of Arctic geoengineering on precipitation in the tropical monsoon regions. In Clim Dyn 41 (1), p. 1738. DOI: 10.1007/s00382-017-3810-y.

"In this study, we investigate and quantify the implications of this ITCZ shift due to Arctic geoengineering for the global monsoon regions using the Community Atmosphere Model version 4 coupled to a slab ocean model. A doubling of CO2 from pre-industrial levels leads to a warming of ~6 K in the Arctic region and precipitation in the monsoon regions increases by up to ~15%. In our Arctic geoengineering simulation which illustrates a plausible latitudinal distribution of the reduction in sunlight, an addition of sulfate aerosols (11 Mt) in the Arctic stratosphere nearly offsets the Arctic warming due to CO2 doubling but this shifts the ITCZ southward by ~1.5° relative to the pre-industrial climate."

LINK


Read more »

10.05.2017

# Media

0 Comments

Science Alert: That Crazy Plan to Refreeze The Arctic Is Actually Getting a Trial Run in Switzerland

"Back in February, physicists announced an outlandish plan to 're-freeze' the Arctic, by installing 10 million wind-powered pumps over the ice cap to replenish the dwindling sea ice. The idea was so wild, no one actually thought it would happen, but researchers in Switzerland have just launched a trial that will see if they can sustain an entire glacier through summer using nothing but snow machines."

LINK


Read more »

03.05.2017

# Media

0 Comments

Economist: The Arctic as it is known today is almost certainly gone

"Some talk of geoengineering—for example, spraying sulphates into the polar air to reflect sunlight back into space, or using salt to seed the creation of sunlight-blocking clouds. Such ideas would have unknown side-effects, but they are worth testing in pilot studies."

LINK


Read more »

28.04.2017

# Media

0 Comments

Economist: The thawing Arctic threatens an environmental catastrophe

"One possibility for cooling the pole is geoengineering, the deliberate modification of the climate to reduce warming. Pumping sulphate aerosols into the Arctic stratosphere from high-flying aircraft could be one way to blot out a bit of the sun. Such an approach would cool Arctic summers but have little effect in winter because there would be no sunlight to reflect. Injecting salt crystals into clouds over the Arctic ocean, to enhance their reflectivity, might also encourage some cooling, though the helpfulness of this type of intervention is highly speculative."

LINK


Read more »

13.04.2017

# Media

0 Comments

Arctic Deeply: The Case for Geoengineering Our Way to a Cooler Arctic

"Plans to tinker with the planet’s atmosphere to combat climate change are terrifying, say researchers. They may also be necessary, given our sluggish efforts to curb carbon emissions."

LINK


Read more »

10.04.2017

# Media

0 Comments

Sustainable Business: ReWilding the Arctic, Solar Geoengineering Among Last Ditch Options for Climate Change

"Incredibly, a Siberian scientist is actively working to protect permafrost through rewilding.  The goal is to “revive the ice age “Mammoth Steppe” ecosystem across the Arctic, creating the northern Serengeti that was once there."

LINK


Read more »

02.03.2017

# Media

0 Comments

CBC: Can a $500 billion geoengineering project save the Arctic from melting? (radio)

Readio broadcast plus transcript.

LINK


Read more »

17.02.2017

# Media

0 Comments

Seeker: Scientists Hatch a Plan to Refreeze the Arctic, Saying Cutting CO2 Isn't Enough

"Large-scale geoengineering interventions could cool the planet, yet the environmental costs are unclear. "

LINK


Read more »

13.02.2017

# Media

0 Comments

the guardian: Could a £400bn plan to refreeze the Arctic before the ice melts really work?

"Temperatures are now so high at the north pole that scientists are contemplating radical schemes to avoid catastrophe"

LINK


Read more »

13.02.2017

# Media

0 Comments

Nature: Arctic 2.0: What happens after all the ice goes?

"Researchers look into the future of the far North for clues to save species and maybe even bring back sea ice."

LINK


Read more »