Originally published on Tue November 4, 2014 2:07 pm
The spotted lanternfly has officially arrived in the U.S., and leaders in Pennsylvania are hoping it won't be staying long. The invasive pest poses a threat to fruit orchards and grape vines, along with forests and the timber industry. It was detected in Berks County, northwest of Philadelphia.
A new United Nations report is warning that fossil fuels must be entirely phased out by the end of the century in order to avoid dangerous and irreversible damage to the Earth's climate.
The Intergovernmental Panel on Climate Change (IPCC) says the world faces "severe, pervasive and irreversible" consequences if greenhouse gas emissions are not cut to zero by 2100.
Examples of "irreversible" change include a runaway melt of the Greenland ice cap that would trigger devastating sea-level rise and could swamp coastal cities and disrupt agriculturally critical monsoons.