Global, AZ Scientists Warn Earth is in ‘Climate Emergency’
Mark Richardson, Public News Service – AZ
TUCSON, Ariz. – A group of 11,000 international scientists, including about a dozen from Arizona, has endorsed a study which concludes the Earth is in a climate emergency.
Published this week in the journal BioScience, the research
says greenhouse gas emissions are rising, governments aren’t making
progress in averting the crisis, and that scientists have a “moral
obligation” to warn about the threat.
Brett Blum, a wildlife conservationist and the manager of the Santa Rita
Experimental Range at the University of Arizona, says he and others who
signed off on the study are frustrated with the lack of progress in
dealing with climate change.
“There’s this perception within the scientific community that whatever
work you do kind of speaks for itself,” says Blum. “It’s a very
overwhelming body of evidence that doesn’t just suggest that climate
change is real. It should be indisputable – and yet, we’re still having a
debate.”
Blum says the research identifies key areas in which governments,
businesses and individuals can make critical changes to slow – if not
halt – the onset of climate change. But a number of political and
business leaders continue to challenge the notion of a warming climate,
calling it a “hoax” or “junk science.”
Blum thinks countries need to replace fossil fuels with renewable energy
and invest in technology to extract carbon from the atmosphere. He’s
frustrated that political leaders have been aware of the problem for
decades, but little has been done.
“George H. W. Bush said in 1990 that this was a global issue, and that
the United States was going to lead the charge on that,” says Blum. “And
we’re here in 2019, and we just pulled out of the Paris Climate
Accord.”
The report lists multiple factors for higher greenhouse-gas emissions,
from per-capita meat production to more airline passengers, the growing
world economy and loss of tree cover around the globe. Blum says what
they have in common is, they’re all human-caused.
“There is a more than sufficient body of evidence to say that these
effects are tied directly to human activity,” says Blum. “And we’re
going to get to a point where we can’t mitigate the worst of those
effects if we don’t make any sort of change – now.”
The report also cites encouraging signs, including lower birth rates and increased use of solar and wind power.