SPICE

===SPICE ( StratosphericParticles Injection for Climate Engineering) is a "geoengineering" research project that aims the feasibility of injecting particles into the stratosphere from a ballong, with the purpose of solar radiation management.===



__Current Event:__
[] The article is about a hellium- filled balloon, which is going to be lauched in the atmosphere, with the purpose of investigating the feasibility of climate engineering. Scientist are working hard on this project and researching the best kind of particles to invest in.

STRATOSPHERIC PARTICLE INJECTION FOR CLIMATE ENGINEERING

 The constant burning of fossil fuels, is leading to a continuous rise in the atmospheric concentration of greenhouse gases, which is causing changes in the Earth’s climate. Due to these changes, nations are getting worried about the consequences it will bring in the future. Many **geoengineering** projects have been presented with the proposal of reducing carbon dioxide emissions, however the viability of those projects are seen as a big concern. And it should be studied by scientist to see weather or not they are going to be efficient.  The Stratospheric Particles Injection For Climate Engineering (SPICE), is a project which will investigate Solar Radiation management by using Stratospheric particles. There are three main challenges regarding Solar Radiation Management which are addressed in this project. 1) How much, of what, is needed to be injected in the atmosphere, to effectively and safely manage climate system? 2) How is it delivered? 3) What are probable impacts?  Dr. Hugh Hunt, from Cambridge University will discuss teh SPICE project, by investigation its benefits, risks, cost, and feasibility of the Solar radiation management with this project. "We propose that particles can be delivered to the stratosphere through a high-pressure pipe suspended by a balloon tethered at an altitude of 20 km. An ultra-high pressure pumping system would deliver a particulate slurry to be dispersed at altitude. The resulting particulate cloud would then lead to global cooling by increasing the albedo of the planet in just the same way as the planet cools after a large volcanic eruption.''

__Key terms:__

 * Geoengineering:** It is a large scale engineering that manipulates the environment, usually to make it habitable to the population.
 * Nozzle**: a device designed to control the direction of fluid flow (increase velocity), as it exits or enter the pipe.
 * Aerosols:** a colloid suspension of fine solid particles or liquid drops in a gas. Clouds, air pollution, smogs, and smoke, are some of the examples.

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