Day: April 30, 2022

Meteorologists warn the extreme heat gripping India and Pakistan is likely to have many cascading effects on human health, ecosystems, agriculture, water, energy, and the economy.

For the past few days, hundreds of millions of people have been sweltering under temperatures of more than 40 degrees Celsius in widespread areas of India and Pakistan. The intense heat is predicted to continue until May 2 and then subside.

The World Meteorological Organization says both India and Pakistan regularly experience excessively high temperatures in the pre-monsoon period, especially in May. While heatwaves do occur in April, it says they are less common.

WMO spokeswoman Clare Nullis said national meteorological and hydrological departments in both countries are implementing measures that have been successful in saving lives in the past few years.

“A lot of work has been taken on heat health action plans specifically and in particular to protect the most vulnerable, and the most vulnerable in urban areas where the impact of the heat tends to be magnified,” she said. “So, we do hope that mortality from this ongoing event will be limited.”

Nullis said large swaths of Pakistan are experiencing daytime temperatures between five and eight degrees Celsius above normal for this time of year. She said the extreme heat will have a punishing impact on Pakistan’s mountainous regions of Gilgit-Baltistan and Khyber Pakhtunkhwa.

“The Pakistan Meteorological Department is warning that the unusual heat has the risk of speeding up the melting of snow and ice, and this might trigger what we call glacial lake outbursts, which lead to flash floods,” she said. “These are, obviously, very deadly hazards.”

Meteorologists say it is premature to attribute the extreme heat in India and Pakistan solely to climate change. However, they agree it is consistent with what is expected in a changing climate.

In its latest report, the Intergovernmental Panel on Climate Change warns heat waves and humid heat stress will be more intense and frequent in South Asia this century.

Source: Voice of America

Satellites have detected methane emissions from belching cows at a California feedlot, marking the first time emissions from livestock – a major component of agricultural methane – could be measured from space.

Environmental data firm GHGSat this month analyzed data from its satellites and pinpointed the methane source from a feedlot in the agricultural Joaquin Valley near Bakersfield, California in February.

This is significant, according to GHGSat, because agricultural methane emissions are hard to measure, and accurate measurement is needed to set enforceable reduction targets for the beef-production industry.

GHGSat said the amount of methane it detected from that single feedlot would result in 5,116 tons of methane emissions if sustained for a year. If that methane were captured, it could power over 15,000 homes, it said.

Agriculture contributes 9.6% to U.S. greenhouse gas emissions, according to the Environmental Protection Agency (EPA), and about 36% of methane emissions, mostly from livestock.

The Biden administration late last year announced its plan to crack down on methane emissions from the U.S. economy.

The EPA unveiled its first rules aimed at reducing methane from existing oil and gas sources that require companies to detect and repair methane leaks. The Agriculture Department rolled out a voluntary incentive program for farmers.

At last year’s climate talks, more than 100 countries pledged to cut methane emissions by 30% and to halt and reverse deforestation by 2030. Much of this reduction would need to come from the livestock industry, according to the U.N. food agency, which said that livestock accounts for 44% of man-made methane emissions.

Several methods to reduce livestock methane emissions are being tested, including adding seaweed to cattle diets.

GHGSat provides its data to the United Nations’ International Methane Emissions Observatory program.

Source: Voice of America