But the influence of cosmic rays could resolve other as yet unexplained cycles in tree growth found in studies in North America.
The paper industry argues that recycling paper and managed tree growth make using paper cheaper and easier on the environment than the cost of recycling computer components.
It also suggests the amount of aerosols that humans emit into the atmosphere could impact tree growth, as high levels of aerosols cause "global dimming", an effect that occurs when the levels of light reaching the Earth's surface fall.
"If it is true that the mechanism is all about rays enhancing diffuse radiation, it would mean that 'global dimming' and 'global brightening' would have a big effect on tree growth and therefore on the absorption of carbon dioxide, " warns Ms Dengel.
It doesn't seem to be affected all that much by climate, soil conditions, geographical location, growth rate, tree size or disease.
The 3km and 9km Circles in a Forest trails explore the refreshing green environment, passing 3m-high tree ferns, old-growth trees, strange fungi and babbling brooks.
When that tree is sawn into boards, those growth rings produce grain and figure that's straight, consistent and predictable.
Despite lackluster growth and policy paralysis in India, the Wisdom Tree ETF has beat the MSCI Emerging Markets Index, which is up 8.6 percent this year.
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Housing growth has also fueled growth in restaurants and retail chains, including 7-11, Dollar Stores and Dollar Tree.
There's been success in creating figure in the same tree by binding bamboo sticks tightly around the trunk with elastic cord to create "dents" in the growth rings.
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