The phrase "are currently challenging" is correct and usable in written English.
It can be used to describe ongoing difficulties or obstacles that are being faced at the present time.
Example: "The economic conditions are currently challenging for many small businesses trying to survive."
Alternatives: "are presently difficult" or "are currently tough".
Families are currently challenging the law in the supreme court, and pressure groups say it is causing young children to have long-term separation from their families.
Many of these issues, some of which are currently challenging our team can be dealt with good supplier relationships, proxies, caching, and defensive development techniques.
Interdisciplinary Connections: Geography – Choose five of the states whose residents are currently challenging the teaching of evolution in schools, then create demographic profiles of each state.
The new European directive on payment services mandates that any online payment will require two-factor authentication (usually password plus SMS code), though lobbyists for retailers are currently challenging that.
Industry groups are currently challenging another futures commission rule, while others are weighing lawsuits against the so-called Volcker Rule, a still-uncompleted plan to stop banks from trading with their own money.
In aquatic conditions, monitoring and quantifying such changes are currently challenging because of dilution of root exudates in water phase and lack of suitable instrumentation to measure them.
While significant gains have been made, we are currently challenged to make the switch to renewable energy in time to avoid significant environmental and climatic changes.
We are currently challenged, however, in our ability to parameterize demographic rates necessary for describing fitness, especially across gradients of human disturbance and for land cover types.
All these unprecedent successes, however, are currently challenged by the very high cost of these medications.
Traditional antithrombotic agents such as vitamin K antagonists as well as clopidogrel are currently challenged and will possibly be replaced by direct oral anticoagulants (apixaban, dabigatran, edoxaban, rivaroxaban) and newer P2Y12 inhibitors (prasugrel, ticagrelor).
