Beetle Busters: A Rogue Insect
and the People Who Track It. By Loree Griffin Burns. Photographs by Ellen
Harasimowicz. Houghton Mifflin Harcourt. $18.99.
The Next Wave: The Quest to
Harness the Power of the Oceans. By Elizabeth Rusch. Houghton Mifflin
Harcourt. $18.99.
These two entries in the
always excellent Scientists in the Field
series take readers from their own yards to the farthest reaches of Earth’s
oceans. Beetle Busters is about the
challenges of trying to find and eliminate an invasive pest that is a
significant danger to North American trees: the Asian longhorned beetle (ALB). This
is an attractive-looking inch-and-half-long insect with very long, striped
antennae. Female beetles chew into trees to lay their eggs, and when the eggs
hatch, the larvae chew their way out. If a tree harbors enough larvae, they can
kill it. So just kill the beetles and their larvae and problem solved, right?
Not so fast – Loree Griffin Burns explains why this is a difficult and complex
situation: the only way to kill the beetles when they are inside a tree is to
cut the tree down and run it through a wood chipper, which means destroying
some trees to protect others. To get young readers involved in this difficult
scientific issue, Burns repeatedly asks what readers would do if they had to
make the decision, and brings them along (with the help of clear and
informative photos by Ellen Harasimowicz) as scientists work on eradication.
Making the task even harder is the fact that the ALB closely resembles other
insects, and scientists must rely on people watching for, spotting and accurately
reporting ALBs – a difficult situation: “I’d been called hundreds of times
throughout my career by people thinking they had seen an Asian longhorned
beetle,” says one scientist, “and every single time, it wasn’t ALB.” But then
comes a call that is about the ALB,
and scientists soon find out just how bad the infestation is: very bad indeed. The
book’s narrative and photos take readers to forests infested by the ALB, to
labs where studies of the beetles and the trees they attack are done, and to
the U.S. Forest Service, where attempts are being made to predict where the ALB
may show up in the future. There are no easy answers to this infestation, and
Burns, to her credit, does not claim that there are. She ends the book by
repeating questions raised early in it about whether readers feel it is right
to cut infested trees – and whether they would feel the same way if the trees
were the only ones in their home’s neighborhood. Scientists themselves are not
sure about the tree-cutting program: there is nothing better available to stop
the ALB, but even those who cut the trees are unhappy that it is necessary –
and are involved in reforestation to try to replace, eventually, what is lost
in the battle. Beetle Busters is especially valuable because it shows that
ecological and scientific problems, even when acknowledged by all parties
affected by them, do not necessarily have neat solutions – or ones without
significant costs to us humans.
The Beetle Busters lesson is important because it needs to be applied
thoughtfully to issues on which people agree far less than they do about the
danger of the ALB. Finding and harnessing alternative sources of energy –
alternatives, that is, to fossil fuels – is one such issue. There is a great
deal of noise, social and political, surrounding this matter, and even a
scientifically oriented “how to do it” book such as The Next Wave must be read within a sociopolitical context. There
is no question that Earth’s oceans are sources of enormous power – power that
occurs naturally and could, if captured, produce huge amounts of electricity
without the necessity of burning oil, natural gas or coal. Devices that can catch and make use of
wave energy have, however, proved elusive. Now, Elizabeth Rusch writes, a
number of people and companies believe they have solved the problem of
harnessing waves’ energy, or are on the verge of solving it. Some approaches
involve devices that float atop the waves. Others involve ones that sit on the
ocean floor. Some devices have already been tested; others exist as prototypes.
Concepts differ; potential funders and investors are lining up behind one
approach or another – or failing to do so, being worried about failures in
tests and risks of deployment. And there are questions about how animals that
live in the oceans would be affected if humans started harnessing wave energy –
questions that are simply unanswerable in a laboratory environment, but that
could lead to torpedoing promising scientific developments in the name of
protecting wildlife. And then there is a broad question not discussed in the
book: how to get wave energy to areas far from the ocean. That is no small matter:
environmental extremists have successfully delayed or stopped many promising
alternative-energy projects by demanding that they be 100% harmless to
everything from birds or bats (in the case of on-shore wind farms) to people’s
lines of sight from land (in the case of off-shore ones). But moving energy
from the source of production to the place of consumption requires transport
mechanisms – that is what a nation’s power grid is all about. Without a grid
that extends to the area where wave power is harnessed, all that power will
simply sit out there, unavailable for use. But moving that power from Point A
to Point B will require heavy construction, heavy industry, and development of
power-grid sections to which area residents and professional environmental
agitators are unalterably opposed. Ultimately, the science to get energy from
ocean waves is not enough. There must also be enough social and political will
to put nonhuman species at some unknown level of risk for the sake of lessening
human dependence on fossil fuels; and there must also be enough will so that
transport mechanisms for zero-emission power can be placed where needed to
bring that power where it has to go. The
Next Wave tells only part of this story – the part involving science and
innovation – and tells it very well. Families would do well to go beyond
Rusch’s book to discuss the harsh non-scientific realities that will make it
very difficult, if not impossible, for the scientists profiled in this book to
do the social good that they are trying so hard to do.
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